Slayer

The group that manages to capture violence and wickedness in music like no other. A cult band, but in my opinion, they remain far more powerful and effective than all those myriad of death, black, brutal, metalcore, grind bands... A cut above the rest. Unmatched. Metallica, Megadeth, and Anthrax, that is, the rest of the big four, combined don't even compare to the hair of Kerry King's most fleshy ass.