Best 70's Metal Band

Ugh, Genesis is horrible!
Anyway, how did Genesis and Yes work their way into a best 70's metal band thread? I mean, man, we can stretch it to a certain degree, but that's a bit extreme?

I do like Yes though. I just cannot stand Genesis at all!
 
Judas Priest is my favorite 70's metal band.

Other greats from the 70's are KISS, Deep Purple, Alice Cooper, Ac/Dc, The Scorpions, Rainbow, Van Halen, Black Sabbath, Led Zeppelin, and Motorhead.