10. Hercules & Love Affair - Hercules & Love Affair
9. Titus Andronicus - The Airing of Grievances
8. Santogold - Santogold
7. Mates of State - Re-Arrange Us
6. The Dutchess & the Duke - She's the Dutchess, He's the Duke
5. The Envelopes - Here Comes the Wind
4. Vampire Weekend - Vampire Weekend
3. Los Campesinos! - Hold On Now, Youngster...
2. Of Montreal - Skeletal Lamping
1. Cut Copy - In Ghost Colours
See the full playlist here. I added Jay Reatard's "Matador Singles '08" as an honorable mention in the middle of the show. If it weren't a compilation it would have placed highly on my year-end list.