In a professional setting, men are better than women. I think that has to do with the long hours and hard work. Women would rather be eating bon-bons. Thinking about sweets... women seem to be drawn towards pastries and being a pastry che while bread making has more men... again, kneading dough requires strength and is odd hours. lol
For the home cook, it's a toss-up.
Edit... I have no doubt that Cookie can work circles around me in the kitchen... The question was asked about men and women "in general" You are the exception to the rule.
With your expertise and inside experience, why do you think there are fewer female chefs than male chefs?
If you're really honest about it, you'll agree that NJ and myself are closer to being on the mark on why there aren't more female chefs.