Worst metal band ever?

wow ok if avenged sevenfold is one of the worst bands than why did it get 2nd on the list of best bands of the decade only behind metallica. but i guess it is all opinionated, because you chose a different style of metal than what you had said was your favorite. i would say the worst metal band is blackguard tho (not just saying it because the guy said they were good, just fyi)