James Hetfield and all the "yeah yeah" bullshit.

the new guy on Exodus (seriously, the new album went from a 9 to a 7 thanks to that guy).

the "screamo" guy on 3 Inches Of Blood. ditch him. now.

Chris Barnes in Six Feet Under (he was great in CC).

Niklas Isfeldt (Dream Evil). not bad, but the songs call for more high pitched screams. he would be great in Mystic Prophecy though.