Men are better. Sorry i'm not trying to be sexist, just realistic. I've never even met a girl who can do more than about 10 push-ups and thats no lie! The girls in my TKD class usually do either situps or "girl pushups" (where you have your knees touching the ground) when the rest of us guys are doing pushups, because the girls just aren't strong enough to do normal pushups. Theres 2 instructors in my TKD class, a man and a woman. I reckon the man is a better instructor because he is more hardcore and doesn't go easy on you. I don't like to spar with girls because they really don't seem to "get into it" like the guys do. I am always a bit conscious about hurting them so I go easy on them, but the guys I can really have good contact sparring matches with cause they get into it and block my kicks and kick back hard and I know they can take a bit of pain - they're not afraid to hurt me and I aint afraid to hurt them. Men have more muscle, less fat and tend to be taller - therefore longer legs and greater reach.