No one has mentioned Gift of Gab AKA Blackalicious. This makes me sad, because Blazing Arrow is my favorite hip-hop album and Gab's lyrics easily flow faster and smoother than any of the other rappers listed here so far.

Other rappers I really like - Dr. Dre, Talib Kweli, Mos Def, Common, Atmosphere, Sage Francis, Outkast, Zion I.

Other rappers I somewhat like - Eminem, Jay-Z, Tupac, Notorious B.I.G., Beans, Immortal Technique, Mobb Deep.