I am a guy, nothing beats really good sex with someone you love, or sex when you first start dating someone, at least for me. Its like being whacked with a pleasure stick when I have an orgasm, and the after glow when I am laying there with my girl is amazing.
I have felt pretty damn good from oxys, and I have never done H. I have done some EXCELLENT coke too. I have had some terrible sex before also.
I would choose the good sex over any of the drugs I have tried, but it really depends who I am with. I am not a one night stand guy, so if I had the opportunity to do a oxy 40mg or go home with a semi attractive girl after a few beers, I would probably do the oxy.