There probably is a thread about this already, but who cares?

I would like to start off with Tommy Vetterli for the album R.I.P. by Coroner and Alex Skolnick for the albums The Legacy and The New Order by Testament. Also you can't forget about Frank Blackfire for the album Persecution Mania. It's a good album if you like early black metal like Bathory, Kreator, and such. Nuclear Winter kicks ass.