I don't really know rap but I heard Danny Brown is really good and he features on a track of an artist I like. My brain can barely keep up with what he says, so I don't know how his mouth does.
I like some of Ice Cube's big hits, as well as some NWA. Mainly for the beats, sounds and production though.
PS, PS2, Gameboy Advance, PS3, PSP, PS4, Xbox One