In rough order, most favorite on top:
1. The Rolling Stones
2. The Clash
3. The Ramones
4. X
5. Steely Dan
6. The Replacements
7. Talking Heads
8. The Blasters
9. Los Lobos
10. REM
11. Sly and the Family Stone
12. Booker T. & the MG's
13. CCR
14. The Who
15. The Minutemen
16. The Band
17. The Beatles
18. The Pretenders
19. Blondie
20. The Police
That's "bands" only, including solo artists would be a little different.
--Justin