All kinds of rock. My favorite song... waaaay too many. If I had to choose just one band to listen to for the rest of my life, it'd be Pink Floyd, they are amazing. There are so many bands whose music I love, it's tough to pick a single favorite. :) Lately, the song that's in my head all the time is "Pitseleh" by Elliott Smith; it is one of my 10 million or so favorites.
The music I listen to the most is dubstep. Some of my faves are: Piano Tune VIP from Bar9, Dramatron from Helicopter Showdown, Turbine by Mantis, Attack by Bratkilla, Raise Your Weapon by Deadmau5, Machine Gun 16-bit Remix by Noisia, Street Lights by Grainne O'neill, Roy Merchant and Ben Kumar, Busin' Skulls by JPhelps, Guided Relaxation by Borgore, and a bunch of others! lol