1. The Clash
2. The Replacements
3. The Sex Pistols
4. Public Image Ltd.
5. Gang Of Four
6. Fugazi
7. Bad Brains
8. Crass
9. Television
10. The Violent Femmes

^damn good list.

another (no order)

Minutemen
The Clash
Operation Ivy
Bad Brains
Black Flag
Circle Jerks
Descendents
MDC
The Germs
Minor Threat

Minor Threat
Descendants
Bad Brains
Minutemen
Circle Jerks
New Mexican Disaster Squad
State of Alert
Rich Kids on LSD
Early Greenday
Rancid

In no particular order.

Not a huge punk fan, so most of my choices are probably going to come off as "obvious" choices, but regardless, in no particular order
-NoFX
-Bad Religion
-Choking Victim
-Sex Pistols
-Pennywise
-Flogging Molly (they're "punk", right?)
-Rancid
-Green Day's first 3 albums (Kerplunk, 39smooth, and Dookie)
-Reel Big Fish (if you're counting Ska as a form of punk)
-Vandals (mostly because My Girlfriend's Dead is so awesome)

@Davey Moore -> you'd consider Violent Femmes punk? Strange, but if that's the case then sub out Vandals for them on my list. I love the Violent Femmes

Wire
Flipper
Wiper
Minutemen
Teen Idles
The Middle Class
Reagan Youth
Circle Jerks
Adolescents
Descendants

As of late, changes daily probably.

1. Anti-Flag


everybody else is tied for spots 2 - 10 :D

LOL WHaT?

Fall Out Boy
Fall Out Boy
Fall Out Boy
Fall Out Boy
Fall Out Boy
Fall Out Boy
Fall Boy Out

The Clash
The Buzz****s
The Sex Pistols
The Dead Kennedys
The Stranglers
D.O.A.
Fear
X
Stiff Little Fingers
The Dead Boys