One last thing to note is I have played each game a huge amount of hours, so all of my comparrisons are imo reasonable.
Anyway, here's the list, as well as, some explanation on each one. I didn't want to just list things without giving any explanation as to why, something that Michael Bay needs to take a lesson or two on. (sorry couldn't resist)
For some reason the post got rid of all my explanations of why I choose the this. I gave explanations for them all but now they are gone, oh well, I'll elaborate again. Also, this list is in no particualr order, I just wrote down 10 things.
1. The World
Morrowind had a great world, and when I played it when it came out it was very foriegn and felt like a totally unique, alien-like world. That was great and all cause it didn't seem like a medievel type game, but it was. However, either due to graphical limitations or from what that region actually had it was very brown and dusty. It either rained all the time or there was only volcanoes, deserts, or swamps. What little forests there were, felt so baren and boring. That's why Skyrim is better. It was more colorful, more detailed, and more interesting to admire and journey through. Oblivion had some of this, but ot was also very average and nothing really stood out nearly as much as Skyrim's. I'm not comparing graphics because when Borrowind came out it had really good graphics at that time, as did Oblivion. So comparing them in graphics is not fair.
2. The Music
The music is the same, if not better. Including the ambient and SFX it just sounds crisper and more accurate. Hearing peopel talking, howls, birds, and many other things, just add to the immersion and make you feel like you are in the game.
3. The Combat
The combat is better because you can actually mix and match many abilties, and they added things like finishers, bashing, bashing with a bow, even though it's not very effective, it's a nice addition.
4. Magic & Melee
Mixing magic and melee in the sense you can see and equip magic in your hands and interchange them. This not only makes the game more fun to mess around with spells or fighting more intense, it also creates a flow that the other two games didn't seem to have.
5. A Favorites List
The favorite list is better, because well the other two games didn't have any. Yeah it's still hampered by the UI, and if you have too many items it svcks scrolling through them, but because this feature is absent from the other games, it's a better game for it.
6. Dragons!
Dragons! They don't need to be explained.
7. NPC's
NPC's, not in the sense of UI, as that changes over the years, but by what they say, act, and do. Each person seems to have a better story or info into their lives. They crowd around, talk to each other, and the game gives you plenty of side things to do with them to make you feel like you and them co-exist.
8. The Loot Buffs
The loot buffs are better and worse, in that yes they took out several spells and such fro mthe other games, but they also added more in regards to abilities and such like alchemy or smithing. This I think makes the loot less useless than all the chests full of staves or amulets I had.
9. Quests Both Side and Main
The quests are better, partly because of the hand-drawn interiors and dungeons, and the fact that I can't remember a single quest from Morrowind that really stood out and had a unique story to it. Oblivion had much more, liek the painting quest and such, but immo Skyrim just has so much more and very unique quests that are more than just fetch or escort missions.
10. Perks
Perks is last because this was one thing I wish the other games had. These alone contribute to making the game far deeper and added plenty or replayability. Any game that has this to offer, is going to be better.
Again, this is all just my opinion, and I would like to hear others.