I listen to Sirius Octane every day on the way to work, so I've been getting hit with a lot of decent rock songs... unfortunately, they're all being over played now and I'm starting to lose some interest lol...
My favourite bands though are Disturbed, Avenged Sevenfold, Korn, Nirvana, and Slipknot, in no specific order.
Nightmare - Avenged Sevenfold
http://youtu.be/94bGzWyHbu0