If you're talking about energy....fight drains more of their energy than what dance does if you beat them. The stronger you are over them, the greater amount of energy you will make them lose, therefore less hits to dtw them.
What if you are about even stats( the person you are targeting) andd you fight them twice it takes 10% of my energy and i regen 9% Do the real question is what percent damage does it take from them (sorry for poor grammar been 28hours