I only like rap that has a decent beat and not just some black person yellin' "brotherS MAI brotherS forget BITCHES YEEEAAAAAAA". An example of this is most of Eminem's later songs. The same goes for dubstep, I'll pretend to listen if it has a decent beat but the second they start going for the poppy trash most eight year olds like to listen to like 5 minute bass breakdowns and dumb fades and stuff I'm out.
Rock is decent, but classic rock is utter stuff (forget you nirvana)