D&D player continuously since 1982. I have also run multi-year long campaigns in R. Talsorian Game's Cyberpunk 2020 and Mekton Zeta Plus RPGs, Paizo Publishing's Pathfinder RPG, Chaosium's Call of Cthulhu and Stormbringer RPGs and Posthuman Studio's Eclipse Phase RPG.
I have run and played in several short campaigns of Palladium Game's Robotech, Rifts and Teenage Mutant Ninja Turtles RPGs. TSR's Star Frontiers RPG, West End Game's DC heroes and Paranoia RPGs and White Wolf Game's Vampire, Werewolf, Mage and Changeling RPGs.
I have played Traveler, Twilight 2000, the original Star Wars rpg, Marvel Superheroes, Villains & Vigilantes, and early HERO system/Champions.
I enjoy introducing new players to Role Playing Games in any system that is reasonably Simulationist, to the exclusion of Narrativist or Gamist systems.
I do not participate in collaborative storytelling RPG systems like Universalis, The Pool, Dungeon World, Mouse Guard, Fiasco and Fate. ( http://www.indie-rpgs.com/articles/3/ )
Systems I Run for Players:
D&D 3-3.5 edition,
5th Edition D&D
Palladium Role Playing System
R. Talsorian's Interlock System
Modules I will run for Players:
Keep on the Borderlands,
Lost Mine of Phandelver,
Black Fang's Crypt.