I think eminem is one of the greatests or tu pac, i mean there not the best in my eyes, but they have inspired the majority of mc's and even those who don't rhyme, also they have conquered appealing to the audiences, but my favourites would to me in terms of skill would be Canibus and Rass Kass.

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Everyone In Frontlines ' Gives Up ' While Battling Me -Rappin' Master

I Have Roosters Going All Day Long Becuase I'm Rising - Grass Hopper

Kick Ur Arse To You U Say "stop,As My Gun Goes "POP"-lil jon

Do You Want This? Its Death And Now Theres No Suicicde - Genie