Sorry read the post wrong. I know boxing much better than mma and I trained Wrestlers to box for two years at u. of M. Most of them were one time wonders and I ha dno problem just pecking and moving , but those who stayed the whole term landed some shots that made my brain slosh. This was only boxing and I was only captain of the boxing team but if you include wrestling then size is the number 1 determining factor, sure a smaller guy can beat a bigger guy, but vice verse. There IS a REASON THAT WEIGHT MAKES DIVISIONS AND NOT SKILL. A skilled fighter can be hurt more in competition or in a bar against a man that has 70 lbs to use against him> i was in many bar fights at the UM and unfortunately even though i was a welterweight i fought the biggest mfer of dudes trying to pick fights with us. i knocked out a few and got put threw a few tables. It was fun but generally size matters more in a street fight, but it always depends on the weight and the skill difference, and how many drinks each has had. It would be a interesting competition to find out, but cheating in such a competition would be great.