Finally I figured it out.  Here:

1. Chad Smith (Red Hot Chili Peppers, guest on over 1,000 albums not by RHCP)

2. Dave Grohl (Nirvana, Foo Fighters: guitarist/singer)

3. Brooks Wackerman (Bad Religion, Suicidal Tendencies)

4. Byron McMackin (Pennywise)

5. Pete Finestone (Bad Religion)

6. Taylor Hawkins (Foo Fighters)

7. Jack Irons (Red Hot Chili Peppers, Pearl Jam)

8. Bobby Schayer (Bad Religion)

9. Topper Headon (The Clash)

10. Joey Kramer (Aerosmith)