I hate these generic skins as well. The way I think about it though is that these skins will only attract attention for maybe a few hours or days, and will then be lost under the weight of more generic skins, into a realm where mortals fear to tread, never to be seen again. Nobody trawls through page after page of teenager skins.
If you make a skin based on a character from a book, film, game or whatever, it will continue to receive attention. It's harder to make the pop reel this way but at least you're leaving more of a legacy and aren't cluttering the skins section with something that's been done before ten times over.