Yeah, it's always the ones with underwiring (and especially the ones with side-wires), whether they're plastic or metal. And yes, it's annoying as hell. Makes this squeaky sound every time I move my upper body, so it renders them unusable.
I think maybe I'll try fabric softener the next time I wash them, and see if that helps, but I'm kinda wondering if I'm doing something wrong in the first place, though I cannot figure out what.
(And I'm with you on hating bras, but I can't exactly get away with not wearing one either, so I'm trying to learn to like them.)