I don't think its a case of men enjoying sex more than women.
Its just they can let go more in sex by not having to worry about the double standards of being called a slut when your having a one night stand or having to take charge of the contraception.
I think while men can enjoy sex no strings attached women have to deal with the consequences of it.
Once women are in relationships I find they can let go more and enjoy it more.
i'd say women, as they can go on & on & on..... having series of orgasms in one session, etc
As for a bloke, unless you're really turned on & you manage two, it's one orgasm & the little guy just dies on you!