After discovering Radiohead as a teenager I basically just opened up to all different types of Rock music. Before that I listened to Korn, a buch of other new-metal bands and whatever alternative post-grunge crap was on the radio. In recent years, I'm more of a Nazi about what I think is good and what I don't, which gets me in to trouble sometimes. Regardless, I think I have pretty good taste. Recently I've been listening to alot of indie-rock stuff and I've basically sworn off the radio (though NPR is pretty good for news and whatnot).
I do enjoy inventive jazz, a very little amount of hip-hop, electronic stuff, and orchestral music as well. I don't think I'll ever get into pop-rap or pop-country...nah...don't see it happening. Some pop-rock is decent. And I always have to give respect to the rock music of the 60s and 70s.