NV stayed true to the originals (you know, Fallout 1 n 2, considered by most to be the greatest RPGs of all time?)
You wanna know whats so shitty about FO3 story? how it pushed you to be the good guy, seriously, finding ur daddy to restart the water cleaner shit, and then go on to sacrifice yourself to stop the evil enclave. and yea, you could say how "oh but u could poison the wadur! n dats EVILLL!" yea, but there was absolutely NO logical reason or explaination to do it. WHY? why would you suddenly stop and help these dudes who have been trying to kill you.
Fallout NV lets you be a evil bastard right from the get-go and actually gives a logical reason for you doing so. '
also, think of consequences: in the original fallouts, saying the wrong thing, or having low intelligence(funniest part of the game) or making even the slightest wrong choice would change the course of the entire game for you. whether it be chaning the course of a quest, or cutting off your access to entire fucking towns. FO3 had none of that, nothing you did really impacted anything. sure, you could blow up the nuke in the middle of the town (also, where the fuck is the logic behind that?) but that nuke did not have ANY real consequences.
FO3 completely Shat-on the lore of the game. NV restored it.
Dull desert wasteland? lol, in Fallout 1+2, besides the towns, THE ENTIRE FUCKING MAP WAS A BARREN FLAT WASTELAND OF NOTHING.
fuck i could go on and on.