Rappers wouldn't be anything without production. Many times, production actually MAKES the rapper. Got me to thinking who would be the Top 5 producers in hip hop.
I'd go with:
(in no particular order)
Primo Battlecat Daz Dre Quik
I can easily name 15 more that could easily take the spot of one of these five. Shit, Kanye Timbaland Dilla Missy Large P Rza Diamond D Prince Paul Neptunes/Pharell