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At least in my relatively limited experience (hey, my dating pool is mostly American men born in the 60s & 70s, so there's not much variety on this front), the uncut guys are a lot more, um, rewarding in a purely mechanical sense. No soreness for me, probably thanks to less violent thrusting (more area with nerve endings directly contradicts his assertion, IMO), and a bit more variety in positions/movement made me a foreskin fan once I got used to the different look and feel. And I've never dated anyone, regardless of foreskin status, with hygiene issues, so that argument doesn't faze me.
Of course you deal with what a partner has if you're attracted to him otherwise, but if I could pick and choose body parts, I'd stick with the original model.