They are all tight in their own way to me. But I haven't listened to much Jadakiss so i can't really comment on him. I have a soft spot for Nas though so I'll have to go with him as my favorite. Just because I feel like I have a deep relationship with his music, and he's the only oneon the list that I listened to when he was underground. So I feel like I've watched his music grow.
Not in any particular order:
* Jay-Z* Eve* 50 Cent* Missy Elliott* Lil Jon & the Eastside Boys* Dj Quik* Ludacris* Eminem* Dr. Dre* Obie Trice* E 40* 2 pac* Snoop* Nelly* Outkast* P Diddy* Da Band* Biggie* Ice Cube* Nas* Memphis Bleek