I like to play a game with a congruent storyline, plenty of action, and people who want to play a semi-serious game. I don't like players who disrupt gameplay, or diverge too often into unrelated stuff. Other than that I like D&D for is social aspects, and when I DM I can handle good, evil, or mixed parties without problem.
I played 2nd Ed AD&D, all the way up through 3.5. I took a break from D&D and tried Exalted, Mage: the Awakening, and Warhammer Fantasy Role-play. I'm painting a Warhammer Fantasy army, and a Warmachine army, but neither is finished yet.