Recently migrated from League of Legends to Dota 2, not going back this time. (I've tried doing it before but gone back to LoL) It was just a matter of getting used to Dota 2 mechanics, it's much better than LoL really. I used to hate on Dota 2 and defend LoL, doing the opposite now.
Other than that I play lots of Arma 2 Wasteland, some Counter-Strike 1.6, Civilization V, Black Ops 2 and occasionally games like Skyrim, Dragon Age: Origins, Ocarina of Time etc.