A fair amount with the dudes, haha. Funnily enough, my girlfriend and I will rate some girls we see/know together too. >_> Perks of having one who's not entirely straight.
I have three male friends I discuss women and relationships with, within different contexts - Advice, the nature of love, appearance, etcetera. I typically loathe discussing girls with most guys since it tends to degenerate solely to physically attractiveness while I'm interested in social convention/theory and the way people handle each other.
Usually my friends will just nudge me and go "I'd give her the shaft."
But nah. I don't really talk to them about it, unless they ask me for relationship advice. Which is weird, since I have no experience in that field. But sure. Why not...