Take the most beautiful woman and the most beautiful man in a nightclub with let's say 500 people. Let both of them approach men and women, respectively, and ask them whether they want to sleep with her/him. Guess who will be more successful? I would bet my house on the woman any day. The most beautiful man could never rival the most beautiful woman. Why is that? Because men rate looks first and women not. This experiment has been done a dozen times and the woman has always won. It was not even close.
Bad example. If you said a mixed of beautiful, average and ugly men and women, I would agree with you. For Beautiful man it's very esy to "get laid" as well. The thing is that there is a huge difference between the % of success between gorgeous men and average ones. I'm not going even to mention the ugly ones.
If you are an average men, you have to have the talking skills with a lady. If you are ugly, it's way unlikely that you will have any success at all. Maybe with some ugly women. But if you are handsome, you don't need to do much. Just showing up.
About the ladies, there is almost no difference between beautiful and average looking women. Of course most of guys will prefere the beautiful one, but they will be very happy if they "score" against an average girl as well. The only women that have it more harder are the ugly ones, but even them can get an average of even a beautiful guy, in some days. Specially with make up, good dressing and taking advantage of the guy wants to "score" badly or/and being very drunk.
But the most beautiful guys and most beautiful girls it's not far from 50/50 %.