TS - considering your username I assumed Reggae was going to be one of the categories.
That's what I mostly listen to at home now. But, I'm a fan of classic rock, jambands (big into Phish and the Grateful Dead), jazz, prog-rock, post-rock, world music, some hip-hop. I particularly appreciate virtuosity. Whether it be on guitar, sax, piano/keys, bass whatever a great lead player can make a band for me.
Oh and I voted jazz just because I listen to that mostly in the car and sometimes at work. Plus most of the concerts I've seen this year have been jazz or rock.