I will make an exception for KISS. For some reason, their logo is just awesome to look at up on stage and really exemplifies the grandeur of the band. You could spell "smurf" in this font and it would look cool.
I really like the logo for The Cramps. It's reminiscent of those EC horror comics like Tales from the Crypt - a really cool look that is often imitated (i.e. The Misfits and the legions of other horror themed bands). One look at a Cramps album cover and you pretty much know what you're in for.
Wearing a Carpenters t-shirt was a sure fire way to get your ass kicked in junior high, but I cannot tell a lie - I dig their logo.
For some reason, one of my favorite quotes of all time is from the 1999 MTV Music Awards when Jim Carey said "Would it kill you to play a little Foghat?" Amen, brother. MTV could use a little Foghat these days. Their logo is awesome too.
And now my favorite... the Pablo Cruise logo is back!