Warhammer 40,000 – I've been playing and painting 40K also exclusively as of late. Not that you couldn't tell based on the current glut of content on this site. Granted I'm not playing 2-3 times a week with a tournament every Saturday like I used to back during the heyday of 3.5 Edition with the special assault rules and god-like Chaos marine book. But I am getting a game in every other week at a minimum and as such am really getting a grasp on the subtleties of seventh edition. I'm still not 100% on all the rules all the time and don't do a whole lot with crazy formations yet. But on the whole I really like the game.