I think that punk rock/metal whatever is utter crap; its a load of screams and not much talent, the same goes for rap and hip-hop. I like alternative because it has the poppy side and the rocky side to it; the best of both worlds.
I listen to a lot of '80s music and piano and violin instrumentals. I don't think I have a favorite artist because I like so many. I've been listening to a lot of Pet Shop Boys and Alphaville recently.