I once thought about cloning a female version of myself, but quickly dismissed that when I realized she'd look exactly like my sister... and I'm not that kinky.
As far as which woman it would be on the island?
It would be my friend Angelina, a red-haired girl who's not the prettiest girl I've ever known, but who understands me better than anyone else I know, and I her; I've known her for 8 years now and I've been in love with her for 4. Pathetically, I've never told her that... And she's dating someone right now fairly seriously, so now probably isn't the right time, either. It's kinda like that whole "Ross-Rachel" thing on the TV show Friends, except in real life it sucks...