Originally Posted by mr dave

It's not just the lightning fast stuff that has me writing them off. It's that there's little to no rhythmic diversity. It's not like when Megadeth would play an old boogie tune at double or triple speed like I Ain't Superstitious. With Slayer it seems it was always built on the same rhythmic structure, that's where the diversity seems to lack. Sure they can apply dynamics to it and make them slower or more eerie, but the underlying groove doesn't seem to ever change, it's still a Slayer beat, just slower or faster, that's where the lack of dimensional depth seems apparent to me.