So after being around the forums, I've come to the conclusion that the general populace and their reason why they support them.
NCR- The 'democracy' spreading throughout the Wastes, albiet slowly. Supporters of NCR are likely to be firm believers in Democractic rule of law, supporting the old world United States customs that the NCR vaguely uses for itself. Supporters are likely to be proud in the idea of pride in their nation, attempting to spread the ideals that a populace must pull together to reunite the Wasteland in a vague familiarity of the old United States.
Caesars Legion- There's seemingly two camps. Camp 1- Evil is the rule of cool. Camp 2- This camp doesn't support the idea the Legion is evil, as it is commonly assumed, do to a majority (even voiced by non legion fans) agreement the Legion is depicted as evil. The supporters here are likely to believe that yes the harsh and often barbaric punishments they inflict are extreme, but they also agree it's used for a reason. It works. What little dialogue we are given about the East, Caesars Legion fans take to heart, that under their harsh rule of law, they have forced most bandits from any lands marked under the bull. Even going so far as to protect traders marked as 'Legion friend'. They firmly believe that we must start anew, without using the Pre-War US as a basis for society.
Mr. House- This camp is the 'intellectual' camp. They prefer to use cunning or spark treaty and would rather everyone play on the level so that business may flourish. These people likely do not believe in a social cause, believing Capitalism and the seemingly Randyian ideals that Mr. House as a character represents. They believe Mr. House with his technology and genius can reignite Vegas, if not mankind, into a Pre-War glory of lights and running water. Though prefering word as their weapon, they will use the gun or the blade if it must resort to this to save their dreams.
Yes-Man/Independance- Supporting the ideals of an Anarchistic society, they will glady make the House go bust, Behead the Bear, and Brand the Bull so they can support Vegas into a self controlled city. Due to this varying in player by player philosophy, this can't be described much more.
Side note, this does not reflect every individual member here on the forum, just the majority that I've had the chance to read through their defense of their respected factions. I tried to present an unbiased look at each faction, so I havent put any favor into any one faction for this thread.
My personal views.
NCR : They do good but at the same time they force their system upon others and give them no choice in the matter. They have a democratic view of law but they force it upon others where the pre war US did the same thing during the resource wars but before the time line fractured and split off from ours it was a different view. I do not support this view even though they do what they feel is right. The people have no say in if they want to join the NCR or not the NCR is out for land grabbing and expanding their "empire" in my eyes.
Cesars Legion : This group gets the job done but upon the backs of forced slave labor. While their actions are justified by them, slaughtering towns because they were all prosttutes/gamblers/thugs/ect is not right. NCR has the right idea with imprisoment and labor to work off their time. I cant support Cesars Legion because while it would stop NCR from expanding East forcing their beliefs and government upon those that dont choose to be a part of it , it is still wrong to support a group like this that uses violence to force people to submit to their will and do their bidding. Even if Cesars legion were to win and beat the NCR, the flawed belief system of this group will eventually lead to the Legion failing just like Rome fell in historical contexts.
Mr. House : He seems to be to be a dictator, he proclaimed power for himself and threw most of the people out of the vegas strip into what is now known as Free Side. He keeps law and order with his army of police Robots, but history is doomed to repeat itself unless you know your history and we have one well known man who had law and order kept with his army of police officals, his name was Hitler. I am weary of Mr. House and wonder if his ideals of standing up against the NCR and the Legion will result in a peaceful and great equal rights settlement. I honestly dont think he will, I think he will continue to use vegas which he now owns tomilk people of their currency to expand his own wealth. Which he blew a big chunk of that money on locating the platnum chip. His now new robot army of soldier faced upgrades just has me feeling like New Vegas will become a town with martial law.
Yesman/Independent : I would have to side with this one the most, I dont see Yes Man/Independent to be bad. I personally see it as a free Vegas where its citizens gets to choose who their leaders are and what direction they go in. If this belief believes in anarchistic ideals well then I do not support this group either.
Since I would have to side with one of the above groups would go with the lesser of all evils which is the NCR. But like the Legion, the NCR will change as they continue to step on people in the wasteland they will have a revolt on their hands. We already know the FOllowers broke away and say how they follow the NCR cleaning up the mess that NCR created with their conquest of land. I would see NCR making more and more enemies slowly and eventually going the way of the Enclave. They have only one choice in the end in this situation, they have to change how they do things and only annex settlements or land that who they called "squatters" who were there before the NCR got there would have to agree to become part of the NCR.
So in the end a quick simple footnote view on these factions are as follows.
NCR : Democratic but very agressive
Cesar Legion : Slave society and very agressive
Mr. House : Mysterious, seclusive, and very money hungry
Yes Man/Independent : govornered by the people for what they want. Or complete and utter chaos
The last one really depends on what point of view Independent Vegas would revolve around.