I'm not as avid of a Fallout player (I've only played four and New Vegas plus most of their expansions [s]still haven't gotten through Old World Blues[/s]) but I've been reading and RPing in the universe before I was old enough to play them. By far my favourite parts of the games was the faction with all of their unique quirks like Slapshot Overtime being based off of what wastelanders thought hockey was like or the Colonel Minute Men with their rad laser muskets.