as a player I like a balance. As a GM I'd prefer GMing Savage Worlds, Castles & Crusades, or GURPS 4e. For GURPS and Savage Worlds I tend to play Westerns, Deadlands: Reloaded and/or Infinite Worlds campaign from GURPS which can be used with any system. I also like miniature wargames. I use Compact Combat from Microtactix and Warhammer though I tend to use the warhammer minis with CC and other freely available wargame rules rather than Game Workshops system which bleeds ones wallet dry with rule and mini changes like collectible mini's do.
Most recent GMing and playing has been online in pbp games due to limited gaming in my area. I prefer all people to to be able to express themselves and all points and ideas heard. I'm an old school classic OD&D gamer then 1eAD&D, and actually miss the old Boot Hill and Gamma World games from TSR.