1. Nas
2. Cormega
3. Big L
4. Notorious BIG
5. Big Pun
6. Ghostface
7. Jay-Z
8. Jadakiss
9. Rakim
10. Scarface

Honorable mention - Cam'ron (old cam'ron), GZA, Prodigy (making a comeback, 2 hot new songs), and look out for Papoose in '07.

Underground rappers I like - Sean Price, Pharoahe monch, and AZ is all right.

Good thread.