About 30 years of various tabletop games. Started with D&D/AD&D and worked my way up to D&D4E, then I discovered Pathfinder. In all those other years I've played a LOT of other systems. Star Wars, Warhammer, Arcanum, RIFTS, TMNT, Twilight 2000 & Dark Conspiracy, CyberPunk, etc. Seems like we always come back to the fantasy system.
I spend the vast majority of my time running vs. playing games. I guess I'm the only one at the table that enjoys rolling so many critical hits over and over (the odds are in my favor with that many rolls).