I agree, I can't get into most of the bands where the singer sounds like he's been gargling gravel (Sepultura and Soulfly being two notable exceptions). But one of the best metal shows I ever saw was Maiden on the opening US night of their Brave New World tour, with Queensryche and Halford opening. It doesn't get much better than that.I'm particular about the metal that I listen to because I can't see screaming as actual singing. Some metal singers do just that.