One cannot be biased that Men are better or Women are. Lot of of people vouch that women are the better cooks but then the Best Chefs in the world are Men.
So it will be unfair to say that one is better than the other. And cooking results are subject to taste. I would say that women are well organised when it comes to cooking and most of them are good. And if put to task then men cannot be left behind. Like I mentioned before that best chefs are men. But then women have hardly tried their hands at this as a career option.
So I would summarise that it is to early to judge on this. And the Best Cook are the ones who love to cook for others to eat.