I'm gonna go with Slayer. They have stayed the course through all of thier carreer. Hard to believe they have been around 25 years??? I remember thinking back when I was around 18 or so if I would be listening to bands like Slayer and such when I became 30,40 and beyond. Well, I'm going to be 35 in a little over a week and I'm still thrashing away to these guys! Can't wait for the next release and tour. I'll be buying it the day it comes out and I will be at the show when they come to Tampa!!!!