I like a good FPS, RPGS, and then Puzzle/Mind Bending. A game I enjoy playing, would be Oblivion, for it's FPS and RPGness, another game I enjoy playing is Portal, for it's FPS Puzzle/Mind Bendingness. The only real mix of all of these I've ever seen in a game, is Half Life. It's got some puzzles every now an than, it's got a nice good story line, and it's a FPS.
real quality (lotsa stuff to collect, good storyline, and you can MAKE a character) RPGs (MMO or not) FPS, a good Strategy/Puzzle that I can at least beat, yep, that stuff