MetallyGuitarded
He whom thou art not
IMHO I think Addictive Drums is far better sounding and as a stand alone ( ie, little to no post production/outboard DSP ) far more flexible and capable. Fuge and Deadstars' presets are insanely good for metal too. You can also get some basic comparison info on both here...
http://www.metallyguitarded.com/ezaddcit.htm
http://www.metallyguitarded.com/ezaddcit.htm