the dark wanderer
I have played & GM-ed: Shadowrun 4E, AD&D, D&D 3.5, D&D 4E, Pathfinder, OSRIC, FATE 2.0, Donjon, Anima: Beyond Fantasy, Hundred, Mist, and various unnamed homebrews.
I have GM-ed but not played: Amber Diceless.
I have played but not GM-ed: Eclipse Phase, Vampire:The Masquerade, Hackmaster 4E, Savage Worlds, FATE 3.0, Outbreak:Undead, and D&D NEXT.
I have played the following GM-less games: Dawn of Worlds and Polaris
As one can probably tell by the allusion in my username, I prefer hard-rules systems that encourage player death.