1. In Mass Effect and Dragon Age you are given multiple choices to tweak the story. In Mass Effect you play as Commander Shepard, but s/he is also largely a blank slate(not as much as the Courier though). You can choose Shepard's choices along the way to make a different character and story every playthrough. This is done even more so in Dragon Age because you also get multiple origins stories to choose from. You can still roleplay in these games, less so in Mass Effect though since you are Commander Shepard.
Fallout 3 does not do the same thing. In Fallout 3 you have the one tutorial/origin story that will tell you what your character is and thus remove your ability to roleplay without completely ignoring the first ten minutes of the game. You can't roleplay as an old tracker from Arizona or as a Talon Company merc because the game doesn't allow this.
2. You could completely ignore the main quest of Fallout 3, but that doesn't change the fact that you are a 19 year old kid who left the Vault he grew up because of his/her father. If you do choose to complete the main quest of the game you are forced to do all the things I have mentioned.
You are never railroaded anywhere in New Vegas. I see this term on here sometimes and its always from people who aren't experienced with this game(no offense). You can go north and either sneak or fight your way past the Cazadores, you can sneak your way past the Deathclaws past Sloan and skip a good portion of the main quest. You can go straight to New Vegas at any time and confront Benny or you could completely ignore the story and set off east into the Mojave. The main quest suggest you go south because that is where the people of Goodsprings say Benny went. It is also a way for new players to get their bearings and learn about the game. I've fought my way past the Cazadores with some Dynamite and 9mm SMG within 20 minutes of leaving Doc Mitchell's house.
3. Fallout 3 is not an RPG, its an adventure game with a linear story. In New Vegas its completely your choice on what you want to do as soon as you step out of Doc Mitchell's house. The point of this game is not to place your own personality on the character(which you can do if you want), its to roleplay as anyone you want. The first time I played I made the choices I wanted to make and followed the main quest south and really enjoyed myself. A while ago I did a playthrough as a clone of Mr. House with his SPECIAL and tag skills, I made choices I thought he would make, used weapons as little as possible and focused on building up my Speech, Science and Barter skills. I had a lot of fun with that playthrough and you couldn't do something like that in Fallout 3. Also the reason why the plot is on hold is because you need to get to the location before you can here the story.
I guess the journey south is a tutorial of sorts and just like New Vegas' actual tutorial it can be skipped, unlike Fallout 3's.
4. This is my opinion, I guessed yours would be different. I can't really understand how you could call the conflict over the Hoover Dam childish, the political implications on the wasteland are simply amazingly handled in New Vegas. In Fallout 3 your father doesn't really make good decisions along the way and does some childish things like thinking everything will be normal in the Vault when he leaves it and killing himself just because the Enclave want the purifier.
Fallout 3 was a theme park, it had lots of unrealistic attractions that were put in there solely to draw your attention and make us ooh and aww. It also made no sense on both sides of the post apocalyptic scale. It had been 200 years since the bombs fell and it still looks like it happened a couple decades ago. On the other end of the scale, Washington itself is way too intact to have survived the amount of nuclear missiles that must have been aimed at it.
In New Vegas you can see that people have actually been rebuilding and view the Great War as ancient history. Before you say anything about New Vegas being intact, there is a reason given for that.
5. Those aren't very profound ending choices in Fallout 3, who pushes the button and how you push it. The only way you can do nothing in the main quest is if you ignore it completely. It is simply bad writing on Bethesda's part that you can't send in Fawkes, RL-3 or Charon. In New Vegas you are choosing who will control the Mojave and how ell they will control it. New Vegas has five different people who can control the Mojave
Spoiler Mr. House, NCR, Caesar's Legion, Legate Lanius and You/Yesman
Fallout 3 may be a bit less restrictive on where you can go, but only because it has that stupid level scaling system for the enemies. In New Vegas a Deathclaw has the same strength no matter what level you are, which I personally think makes it more rewarding when you become powerful enough to not fear them.
6. Actually that's the premise of every game ever made. RPG's are about roleplaying your own character in a world filled with choices. Fallout 3, as I said earlier, is not an RPG.
7. Fallout 3 is also the reason why I bought New Vegas on the day it came out. New Vegas combined with the originals made me realize what was wrong with Fallout 3. Don't get me wrong, Fallout 3 is still a great game.
8. I've killed those same Legionnaires with about 50 Guns skill and a Cowboy Repeater on Normal difficulty. The only character the developers actually made invincible is Yesman.
9. Roleplay as someone else, look at the conflict in the wasteland and decide who you think deserves your support.
10. In Fallout 3 you are first looking for your father and then you help save the wasteland, not the world. I've already stated why Fallout 3 is unrealistic and New Vegas isn't. After 200 years people would have moved on and begin to establish communities.
In New Vegas you can decide who gains control of the Mojave and how well they will control it.
11. I really don't like derailing conversations, but I felt the need to respond.
I do the exact opposite. New Vegas is the one that makes me think and question the morality of certain actions, it is also the one that didn't try to earn my affection and yet it gained it.
12. If you honestly believe that then you haven't been playing long or spoken to a lot of people.
The total amount of Speech checks in Fallout: New Vegas:
Spoiler
15, 30 and 45 Speech in lieu of Benny's evidence to convince Swank to give you your weapons back at The Tops for the confrontation with Benny.
20 Speech to get Joe Cobb to tell you what he did to land himself in prison.
25 Speech to convince Trudy to join the fight in Ghost Town Gunfight.
25 Speech to convince Chet to supply you for the fight with the powder gangers in Run Goodsprings Run.
25, 50 and 75 Speech to trick Karl into losing his cool in front of Papa Khan during the quest Oh My Papa.
25 Speech to convince Deputy Beagle in Primm to stay and fight with you after you release him.
25 Speech to convince Angela Williams to tell the character her opinion about Thomas Hildern.
25 Speech to convince Private Ortega to tell you about the "ungrateful" farmers at the NCR Sharecropper Farms.
30 Speech or 30 Medicine to convince Doc Mitchell to give you three stimpaks before initially leaving his house. Passing both will result in five stimpaks rather than six, Speech will always be the second choice (worth 2).
30 Speech to convince Chavez to move on in I Fought the Law.
30 Speech to convince Comm Officer Lenk to share her story.
30 Speech or 6 Intelligence to convince the suspicious merchant at Jean Sky Diving to reveal himself for I Fought the Law.
30 Speech to convince Johnson Nash to give up information for I Fought the Law for free.
30 Speech or pay 200 caps to convince Major Knight at the Mojave Outpost to pardon Meyers for the questMy Kind of Town.
30 Speech to convince Mick to sell you weapons at Mick and Ralph's.
35 Speech to convince Milo to start the mission Back in Your Own Backyard.
35 Speech to convince Haggerty to allow you into HELIOS One.
40 Speech to convince Deputy Beagle in Primm to give you the information before you release him.
40 Speech to convince each of the Misfits to be more of a "team player" in Flags of Our Foul-Ups.
40 Speech to convince Jane in Freeside to give something else of value towards her debt in quest Debt Collector.
40 Speech to convince Thomas Hildern to improve the offered reward in There Stands the Grass. (available after talking to Dr. Williams and returning to confront Hildern)
41 Speech to convince Boone to tell you who he's on the lookout for.
45 Speech to convince Jessup to release the hostages in Boulder City.
50 Speech to convince Neil to help you kill Tabitha in Crazy, Crazy, Crazy.
50 Speech to convince Tomas to get rid of his necklace.
50 Speech to convince Joana you have what it takes to have six with her, which follows into another speech challenge of 75 in order for her to lead you to her room and commit the deed.
50 Speech or the Black Widow perk to convince Chris Haversam that he's human in Come Fly With Me.
50 Speech to obtain thrust controllers for 250 caps from Old Lady Gibson for Come Fly With Me.
50 Speech to convince Ralph to craft you a counterfeit passport for The Strip at a cost of 500 caps.
50 Speech to get away with killing Caesar with the autodoc during Et Tumor, Brute? (as an alternative to 50Medicine or positive Legion reputation)
55 Speech to get the Think tanks to realize that you are aware of their conversation.
60 Speech to convince Keith to show you how he's cheating at Caravan.
60 Speech to convince Pacer to let you see the King for free.
60 Speech to convince Private Stone to turn himself in during the Medical Mystery quest.
60 Speech to convince Benny to head immediately to The Tops Presidential Suite without his bodyguards.
60 Speech to lie and convince Private Edwards to leave the Camp searchlight house he is holding out in by saying that all the radscorpions are gone.
62 Speech to convince Mortimer to choose the cannibal side in Beyond the Beef.
64 Speech to convince all Fiends inside of Vault 3 so they will not attack you.
65 Speech to convince the gambler to a weapons check while guarding the front of the Silver Rush duringBirds of a Feather.
65 Speech to convince Norton outside of Jacobstown to leave the mutants alone in the quest Unfriendly Persuasion
65 Speech to ask Dog/God "Why did you put emphasis on the word "Master" before?" after freeing him from the jail. Dead Money
66 Speech to convince Jack in the Red Rock Drug Lab to make medicinal chems.
75 Speech to make Dog let God take over in the Dead Money DLC quest Put the Beast Down. (This can only be done if you convinced God to come out of the cage in the quest Find Collar 8: "Dog".
75 Speech to convince the Strange Man during the Birds of a Feather quest to pay you for running chems.
75 Speech or the Confirmed Bachelor perk to convince Arcade Gannon to be your companion.
75 Speech to convince Alice McLafferty to give Janet her wages.
75 Speech to cause Tabitha to order the nightkin under her command to attack the super mutants at Black Mountain when activating a radio during Crazy, Crazy, Crazy.
80 Speech to convince Keene for not taking the Stealth Boy Mk2 in the quest Guess Who I Saw Today.
80 Speech to convince Isaac that the Gun Runners can use refurbished weapons while Dealing with Contreras.
80 Speech to convince Orion Moreno to stay with the Remnants and fight for the NCR during the quest For Auld Lang Syne.
80 Speech or good Karma to convince Legate Lanius to fight you one-on-one.
80 Speech in order to convince Hector to tell you what he knows about Corporal White during the quest The White Wash.
85 Speech to avoid combat at the conclusion of Bye Bye Love by convincing your pursuers that Joana's escape is part of a secret deal between Carlitos and the Omertas.
85 Speech to say Dog/God "You want to protect Dog..." after freeing him from the jail. Dead Money
85 Speech to convince Dog/God to merge personalities in the Dead Money DLC quest Put the Beast Down.
95 Speech to talk your way out of combat after bringing back the objective in I Could Make You Care and then leaving the Brotherhood of Steel base.
100 Speech to convince Lee Oliver to leave Hoover Dam without fighting you during the quest Veni, Vidi, Vici.
100 Speech to convince Legate Lanius to leave Hoover Dam without fighting you.