I have a three way tie Wu-Tang Enter the 36 Chambers, Raekwon The Chef-Only Built for Cuban Linx,and Ol' Dirty Bastard Enter the 36 Chamber Dirty Version
AH man, it so hard to put it down to just one. It would have to be a tie for me...
Jeff Buckley - Grace VS D'Angelo - Voodoo
But, since this is a hip-hop thread, I'd say my favourite hip-hop album is a toss-up between Fantastic Vol. 2 by Slum Village and Late Registration by Kanye West