From my experience in Bethesda's forums the most common reasons are-Berny Marcus said:I want to know why some people prefer Fallout 3 over New Vegas. I'm just curious though, what they like about it more.
I feel like Fallout 3 is just bare bones, and constricted then New Vegas.
In New Vegas, you can join a side or be on your own in the main campaign.
In Fallout 3, you're truly on your own, you only help one side plot wise. (Even if you do that evil decision near the end before Broken Steel begins, not spoiling it)
Theres like a shit ton to do in New Vegas, Fallout 3 feels like theres not so many sidequests to it. You can still alot of hit in Fallout 3.
More enemies, and weapons variety. I feel like the only enemies you can fight in Fallout 3 were Ghouls and Super Mutants (I had the animal lovers perk lol)
These are just some of my points as to why I think New Vegas is leagues better then Fallout 3. I already get the OP's reasons, but to those who prefer Fallout 3 more then New Vegas, why? I am just curious is all.
People like exploring the landscape, and finding unique and real locations in FO3.
They like the "bombs just fell" feel in FO3.
They don't like that they can't go north at the start without difficulty in NV.
They don't like having to make tough choices in NV.
They don't like that all NV factions have bad sides to them.