Hm. Mostly either rock(all eras) or comedy. Lot of Tool and Led Zepplin, then a list of all sorts of things, Seether, Cage the Elephant, She Wants Revenge, Primus, The Darkness. Into comedy(musical), Flight of the Conchords and Stephen Lynch both get a lot of play for me and I have a number of albums by Weird Al or Dr. Demento compilations that go into regular rotation.
Outside of those two main genres I kind of jump into anything if I think its either really well played or I like the lyrics. Deltron 3030, Slick Rick, Digital Underground and Eminem all probably fall into 'Rap' even if they are different eras. Daft Punk, Benni Benassi, Fatboy Slim are all electronic. Then I can't help but put on things like Mr. Bungle when I want something from a weird category.
Outside of those two main genres I kind of jump into anything if I think its either really well played or I like the lyrics. Deltron 3030, Slick Rick, Digital Underground and Eminem all probably fall into 'Rap' even if they are different eras. Daft Punk, Benni Benassi, Fatboy Slim are all electronic. Then I can't help but put on things like Mr. Bungle when I want something from a weird category.