Eh, for me Tony/Loki (which I also loathe) is more about fandom's obsessive woobification of a particular kind of pretty guy and the assumption that hatred actually does equal love. I dislike it and think it's utterly implausible and ooc, but at least it's based in SOMETHING.

C/C, tho, is SO VERY MUCH rub-white-dick-together, which is why its popularity for me goes from "eh, sad there's so much not-my-ship" to "FOR FUCKSAKE AUUUUGH SHUT UP".