Hate Simple Plan, U2, Dashboard Confessional, Avril Lavigne, My Chemical Romance, The Used (INCREDIBLY over-rated around here, and I have NO idea why), The Darkness (late 70's called, they want their shitty music back), Dido, Enya, Hootie and the Blowfish, Junior Senior, Justin Timberlake, Maroon 5, Matchbook Romance, Senses Fail, Story of the Year, The Cure.
Others I just kinda dislike :
Evanescence...meh...I think Amy has a good enough voice to be doing something better than singing with that band...and the band itself does some really neat stuff (listen to "Eternal" from the Origin album)...but Evanescence as it is really sucks.
New Found Glory...I used to be too annoyed by them to listen...the guys voice was just... blegh. But I got to see a live recording and they sounded almost as good as an album recording...and the music video for "All Downhill From Here" was awesome, so they get SOME points for that.
Sum 41 used to really piss me off, but I thought they were on to something good with a few songs from their new album ("Chuck").