Holy shit, creepy...chimpers have very similar music taste. I agree with metallica, slayer, tool, soundgarden, AIC having spots.
As far as breaking the mold, I have to go with appetite by GNR.
A couple of good ones not mentioned are mother's milk by red hot chili peppers and pearl jam 10.
Singles soundtrack brought in grunge in my opinion and is a classic.
Deftones entire collection is on my MP3 and never gets old.