Let me start this of by saying that I prefer Fallout 3 to NV. In Vegas the quests felt more like odd jobs from different people. A bit like GrandTheftAuto. In Fo3 the quests were a lot more tragic & important. They involved quests like "Big trouble in Big town," where you had to help find napped townsfolk from Mutants. Or "Tranquility lane" which was a simulation of the world before the war. It contained real people who were blinded by the truth that everything wasn't peachy.
In Vegas the quests are not as important but there are a lot more. They felt like "do this for this person; get paid." In Fallout 3 "help this person, & maybe get paid." I don't really see why the story in Vegas is better. Also exactly why do some people not like the story of Fallout 3? Its seems perfectly fine to me.. Is it the fact that the Brotherhood changed their ways or something else? Fallout 3 is was an amazing game & some people don't accept that. Bethesda did save the Fallout franchise just for you to know.
So do you agree or do you want to chuck nades at me? :ermm:
Why not just being honest, and admit you don't like quests which aren't centered around "go to place x and shoot y?"

The story in Fallout 3 for sure isn't better, it's just way easier to grasp for some folks. Some just prefer clear black and white tales without ambiguity.
Stating Fallout 3s quests were more tragic HAS to be a joke, right?
Have you ever done Boones sidequest? or Arcade's? or Veronica's? Have ever been to the Gomorrah and done anything there besides gambling? Have you ever talked to Betsy or Pretty Sarah? Heck, have you ever been to Freeside?
New Vegas is full of little stories which boast really
believable human tragedy inside them, and not something like
"Ohhh, save the doc of our joke settlement with no connection to the rest of the gaming world from Super Mutant dungeon #76"
And it appears to be pretty obvious that you even failed to understand, what Tranqulity lane was about...
I've played 3 a lot and got a lot of enjoyment from it, but please, don't pick up the obvious weakpoints of it and try using them as arguments why it is supposedly better than New Vegas.
Also, when doing a poll, then offer choices that go beyond YOUR preferred outcome.
New Vegas has a lot of REALLY good quests