The Beatles.
Produced a select few classic songs, but in general they were nothing special in my opinion.

Led Zeppelin.
Same as The Beatles, produced some noteworthy stuff... but the rest is dull.

U2.
Maybe my sheer hatred of Bono is skewing my bias slightly, but their style has become too recognizable to me (Achtung Baby & The Joshua Tree are awesome though!) The Edge needs a new guitar desperately... come on man, it has been over 30 years now. Just buy a new one, I'm sure you have the necessary funding at this stage.

Muse.
The lead singers voice wrecks my head, and again, much like U2, they are too recognizable (because of him).

Bon Jovi.
Where do I begin?

Creed.
Over-dramatism to a sickening point. That Stapp guy clenches his fists together more than professional boxers do, it's cringeworthy!

Guns N' Roses.
Axl Rose irritates the hell out of me. Whiny, whiny little prick. If rats could sing, I would imagine their voice would be a replica of Axl Rose's.