Jay, Em, & Nas are my Top 3.

Then in no particular order would be Biggie, Jadakiss, Tupac, Meth, Red, Styles, Big L, Outkast, Dre, Snoop, Game, rest of Wu, Cube, Talib Kweli, Common, Pun, AZ, KRS, Luda, among a few others.

And to me there is absolutely no difference between 'underground' and 'mainstream'...it's all music, but if you insist...Andre Nickatina, Akrobatik, Mr. Lif, Dead Prez.
MacWQ33 Reviewed by MacWQ33 on . Favorite Rapper Whose your favorite rapper making music right now? I would say Jay-Z if his last album wasn't so lame, so I guess I'll say Kanye (partially because he is an insane producer) Rating: 5