I actually like a lot of classic rock (yes even Hotel California, that solo kicks ass) but there is a lot of bad classic rock too. What do you think the worst classic rock song is? What is the most overrated band or artist? I think Supertramp is mid at best, but Bob Seeger is truly dreadful.
I would block someone for not liking Black Sabbath. If you don't like Sabbath, you've got nothing to say I wanna hear.