Mixture of both.
A fighter with mediocre skills but an optimized body type will drop a smaller fighter who has great skills but the inferior body type.
If its just muscle with zero skills then yea skill is most likely going to win.
A fighter with mediocre skills but an optimized body type will drop a smaller fighter who has great skills but the inferior body type.
If its just muscle with zero skills then yea skill is most likely going to win.

Is 21 to old to learn a martial art brehs?
Sure kiddo.