I love massive RPGs, so long as it's not just Easter eggs ("oh look a billboard for New Coke" kind of thing), a few of them is fine, but it's gotta have some interesting stuff that adds to the game tucked away in the nooks and crannies, I don't know about others but when I play an RPG I strenuously avoid walkthroughs, sure sometimes I might grab a guide for a particular mission (freaking annoying prat of a quest to find all the gargoyles in Fable 2, gave up and printed out a list after 30mins of trying to find one that I knew was around, turns out had to stand on a crate and look in one damn direction to find it), but overall I love exploring and finding stuff, it's very rewarding.