I am part of (usually host) of a regular Sunday game night that has included over the past year or so: FFG Star Wars RPG, Imperial Assault, a lot of board games (including Game of Thrones and X-COM), Battletech (including pick up games, connected campaign games, and a full-blown A Time of War RPG campaign), and even Palladium Fantasy RPG. Over the years I've been GM for a LOT of games from a LOT of systems, and played in roughly a metric crap-ton more.
For those of you who don't want to read a list, the ones that "stuck" over the years in no particular order have been: Battletech (the board/minis game), Palladium's multiverse of games (Teenage Mutant Ninja Turtles and Other Strangeness was a gateway game), and WEG's D6 Star Wars game. FFG's take on Star Wars feels like home to a guy who played and ran D6 SW for yeeeeearrrs, so I think we can add it to the list soon.
