Top 10 Rapper now. from MTV

1. Lil Wayne
2. T.I. 
3. Game
4. Andre 3000
5. Kanye West
6. Young Jeezy
7. Jay-Z
8. 50 Cent
9. Common
10. Jim Jones  

29th July 2007 MTV named the 10 Hottest Rappers in the Game
This list, designed to rate who is the most successful and in-demand now, is not based on the artists' entire careers.

-from Wikipedia.