I play board games two or three times a week. I love games with elegant rules which still lead to a game that can be played over and over. I've been playing bridge for 30 years, and I still find something new every time I play. Dominion and Werewolf are really neat elegant systems, but nearly every game is a new experience.
I also need to be able to improve. I think Royal Turf is an elegant game, but I know the ideal strategy and don't enjoy playing anymore. Whereas I have a lot to learn to be a better Zendo player and a better poker player, and will never master either game.
This week, I've played bridge, Texas Hold'em, Dominion, Race for the Galaxy, La Boca, Coup, and Cartagena.
Oh, you probably meant video games. None. I love video games, but they eat all my time and are usually antisocial.