Saying nothing at all is the obvious choice. I don't want to hear it. It's easy to talk crazy about people from a distance. It's pretty easy, base, rude, and in bad form.
My dealbreakers are mine. You don't have to like them.
It's a good thing I'm not looking, because everyone I know exemplifies one or more of these bad qualities. Like someone's butt and body *slobber drool*, but think they are trying to make themselves look younger by they're choice of hat or shoes? I don't care, I don't want to hear about it. When I have to hear this stuff, the guy never had a chance with that person in the first place. It seems a little sad and pathetic. *shrug*