One piece of advice for character creation - make sure you don't give your character an Intelligence score below 4. If you do, a huge portion of the game's story and almost all of the dialogue will be sacrificed for stupid humor. Other than that, make whatever type of character you want. The game is winnable with almost any character (though some are easier than others).
I actually prefer Fallout to Fallout 2, though a fan patch to fix all the bugs would definitely make the latter much better.
Oh, and if you like either one of these games, pick up Planescape: Torment next. It was made by the same people and it's even better than the Fallouts, IMO.