I think what it comes down to is how much you enjoy the freedom of the games. A lot of their games kinda just let you loose with a story that you can build over the course of the game, whereas New Vegas has a goal in mind that it is constantly pushing you towards.
Again, I don’t think either preference is better than the other. I just think they are two very different play styles that are suited for different experiences.
Is it just me or is act 3 performance somehow worse?