I have to play the opposite game here and say the women that I'd cross back over the fence for. I'm sorry if these aren't very inspired. I haven't given this some serious thought for about 10 years.
1. Angelina Jolie - The gay man's straight man's Brad Pitt. If you pose this question to ANY straight man, you will ALWAYS get Brad Pitt. It's the default cop-out.
2. Milla Jovovich - I've had a crush on her ever since that scene in The Fifth Element in that white strap dress she wears right after her birth.
3. The Forehead - Christina Ricci - Her eyes and forehead are so big that she's a hair's width on the side of freakish. However, she's played bad girl roles with such intensity that I'm convinced she's a bad girl in real life. Freakish bad girls, I've heard, can be quite exciting.
4. The Neck - Gwyneth Paltrow - In Emma she used it to reach the top branches for leaves to eat. If ever I had a fetish it would be for Gwyneth's neck.
5. Cate Blanchette - She's not sexual, or by many standards, in league with Angelina in terms of outward beauty, but her magnitism is so intense, she could convince me to leave Jerry and give her my life savings. I'm thankful she only uses her powers for good.