I have been a player in RPG's (started with original D&D) in the early '80s. I DM'd my first game in 1988. Since that time I have enjoyed both DMing and PCing.
My favorite RPG would have to be AD&D 2nd, though 5th edition has offered me a lot to look forward to, without a large number of problems (as both D&D 3rd and 4th had). Historically I have enjoyed several of the white wolf games as well. Such as vampire the mascarade and exalted. Currently, all the campaigns I am DMing are 5th edition.