skipping groups and guys I consider mainly producers
1. Big Boi (MATH BIAS) 2. KRS-One 3. Notorious B.I.G. 4. Masta Ace 5. MF DOOM 6. Mos Def 7. Raekwon (gets a major boost for touching 75% of tracks on 36 Chambers, which no other MC did and what I use to include a group album in a solo score) 8. Q-Tip 9. Freddie Gibbs 10. 2Pac 11. Jay-Z 12. Ghostface Killah 13. Kanye West 14. Nas 15. Lil' Wayne