some of my favs, 4th for me is clearly the best producer after Rza.

az the world turns (la the darkman)
love (la the darkman)
street opera (killah priest)
Mind as a weapon (killah priest)
the city (wu-tang)
full moon (killarmy)
wu-renegades (killarmy)
wu-gambinos (co-production credit. Definitely hear 4th in that beat)
the push (killarmy)
feel it (first half, don't like direction the beat goes)