Even as a female, I have a list of things I consider attractive. I don't know that any of them are unconventional/non-traditional... hm... well, piercings. I like a girl with piercings. Not too many, though, and not that stupid Monroe thing or the septum. Only some girls can pull that shit off, especially the Monroe.
I love a girl who looks punky/grungy but without the stupid swoopy hair thing and skinny jeans. You know, a girl who means it, not one who just wears it.
Also, a girl that doesn't need makeup to be a total knockout. Makeup is so overrated; classic beauty is the shit.