Ugh, this is tough, and it'll no doubt provide some interesting responses.
Top 10 Bands/Artists (No particular order)
1. John Mayer
2. Maroon 5
3. The Corrs
4. Linkin Park
5. Seal
6. Maria Mena
7. U2
8. Ben Folds
9. Jimmy Eat World
10. Dashboard Confessional
Top 10 Songs
1. Comfortable- John Mayer
2. My Immortal- Evanescence (album, not the poppy radio edit)
3. St. Patrick's Day- John Mayer
4. Brick- Ben Folds' Five
5. High- The Lighthouse Family
6. Good Riddance- Greenday
7. Runaway- The Corrs
8. Still Fighting It- Ben Folds
9. Broken Hearts and Concrete Floors- Dashboard Confessional
10. Better Be Home Soon- Crowded House
Man, that top ten would fluctuate with my mood.