Al1: How much did you like FO3? New Vegas is, IMO, a much better game, particularly if you are fan of the Fallout series. New Vegas does what FO3 did not, it
feels like a fallout game.
trusteft: Exactly.
Which is not surprising since it was made by Obsidian.
Yeah, I think they used most of what they were going to put into the "Van Buren" Fallout 3 game. Some small details were changed, but the Fallout: New Vegas wiki shows how many similarities exist.
I will also jump on the bandwagon and say that New Vegas is much better than Fallout 3 in terms of plot and feel. However, I did run across a few bugs in my play-throughs. Nothing a console command or two couldn't fix, but it did require me to look up a solution online for a couple of them. One was a broken companion quest, fixed by (re)setting a dialogue value for that companion. Another was that I stopped getting benefits from my traits (Not perks, just the creation traits), but that was fixed by removing them then adding them back via the console.
((I may have caused the trait bug myself by adding a hair mod, then repeatedly using the console command 'ShowRaceMenu' to change hairstyles, then just deleting the mod when nothing looked that great to me. Not sure why this would have caused my character to lose her traits, but the timing seems to line up about right.))