I'd say I'm a cross between an Old school gamer (moreso due to age and growing up on the Atari/NES/SNES/Genesis/PSI-II, etc) and role player.
Except I don't really learn toward the retro games.... JRPGs are the only thing I lean towards, but I do get old-game-nostalgia if someone mentions it or has the name of an older game character.
Aaannndd a little bit of adventurer - I always want to try new content to challenge myself and see how things progress (just not... things like FCOB....) but I don't immediately jump ship once I run out of new content.

o_O Hard to pick just one. People are too complex to fall under one category.