I have the Arkham Horror base and the Innsmouth Horror expansion and I just love that game! I also love Ticket to Ride, Smallworld and Tsuro (not super geekey, but hey!)
I play a lot of Diablo 2&3 as well as Skylanders (JUDGE ME!) and Portal.
My main geekout is tabletop, however. I have played five strong D&D3.5 campaigns, one (horrible) 4e, one 5e Beta. I have played four or so Pathfinder games, one Don't Rest Your Head, one Marvel RPG, one Dresden Files RPG and I am currently in a Shadowrun game. Starting in September, we also want to look into running Savage Worlds.
OH! And I helped put together and run a 48 hour Pathfinder game.