My evaluation, on a scale of 0 to 10, 10 being the best:
1. Fergie featuring will.i.am - Fergalicious = (9/10)
2. Rihanna & Sean Paul - Break It Off = (8.5/10)
3. Nelly Furtado - Say It Right = (9/10)
4. Beyoncé - Irreplaceable = (9.5/10)
5. Justin Timberlake featuring T.I. - My Love = (9/10)
6. Akon featuring Snoop Dogg - I Wanna Love You = (9/10)
7. Bow Wow featuring Johnta Austin & Chris Brown - Shortie Like Mine = (9/10)
8. Lloyd featuring Lil' Wayne - You = (8.5/10)
9. Ciara - Promise = (8.5/10)
10. Omarion - Ice Box = (8/10)
11. Chris Brown - Say Goodbye = (9/10)
12. Corinne Bailey Rae - Put Your Records On = (8/10)
13. Lily Allen - Smile = (8/10)
14. KT Tunstall - Suddenly I See = (8/10)
15. hellogoodbye - Here (In Your Arms) = (8.5/10)
16. The Red Jumpsuit Apparatus - Face Down = (6.5/10)
17. The Fray - How To Save A Life = (8/10)
18. Nickelback - If Everyone Cared = (6.5/10)
19. Daughtry - It's Not Over = (2/10)
20. The All-American Rejects - It Ends Tonight = (6.5/10)
Average = 7.95/10
I'll add a full point to that, considering it's Bronx-friendly (translation: no random country song at the end, as Dan pointed out).
Final rating = 8.95/10