I don't know, guys, as a life-long Malkmus apologist, it seems to me that Pavement is one of those bands that everyone thinks everyone else likes a lot, but nobody will admit to liking themselves. Except for me! Favorite band of all time.
Back to the topic, I've borrowed a lot from other people's lists, thanks for the reminders:
definitely The Decemberists
Lavender Diamond is awful.
Arab Strap
Moldy Peaches
Will Oldham and his many guises
The Ramones
The Clash
Holy Moly do I hate Interpol
The Flaming Lips
Yeah Yeah Yeahs
Arcade Fire
Royal Trux (I'll absolutely love every fifth song I hear by this band, and the rest of the stuff just hurts)
I haven't even bothered with getting to know Clap Your Hands Say Yeah or The Hold Steady based on name alone, so I can't say whether or not I like them.