I like way to many bands to narrow it down to just one. As I said earlier Dead Moon are right up there but I don't really have a favorite.

Black Sabath, they started metal

Iron Maiden

Alot of great picks on here guys

Not in any order

The Misfits..Red Hot Chili peppers..The Beatles..Zeppelin..Sabbath(So fucking heavy and real, it's a damn shame when someone doesn't appreciate it because "it's too slow")