Play alot of role playing games and usually play through more than once and max out all the content. Just recently started looking at the wiki pages, alot of good info in there, much better info than strategy guides most of the time.
My favorite games are: Oblivion, Morrowind, Mass Effect, Castlevania SOTN, Splinter Cell: Chaos Theory, Blade of Darkness, KOTOR, Neverwinter Nights, Dragon Quest 8, Chrono Cross, Chrono Trigger, Jade Empire, Suikoden 5, Dungeon Siege 2, Final Fantasy 12, World of Warcraft, and of course Fallout 3.
My not so favorite games are: Final Fantasy 11, Final Fantasy 8, Legend of Legaia 2, Rogue Galaxy, Fable 2, KOTOR 2, and Neverwinter Nights 2.