Michael Bolton and Joe Cocker definitely deserve a spot at the top of the classic rock hate list.
Ditto for Bob Seger. And Eddie Money.
And yeah, the Rolling Stones were great in the 60s and 70s, but they have sucked since "Tattoo You." One thing irritating about many classic rock fans is that they seem to think that being great two decades ago means that anything they do subsequently is also great. The Beatles did themselves a huge favor by splitting up, because surely they would've followed the same sad downward spiral of the Stones. I think the Stones should've hung it up at the end of the 70s.
Bands like the Eagles and Journey are so cheesy, and therefore somewhat funny, that they really don't deserve to be hated. Ditto for any "progressive" bands like Rush, or ELP, or Yes, the anthemists of boys who never grew out of their Dungeons-and-Dragons phase.
I can't figure out why so many of you hate Aerosmith though. They rawk, and they're funny!