boxer vs mma fighter in boxing match = boxer wins
people think mcgregor hits hard, ye he does for an mma fighter but mayweathers been in there with harder hitters than mcgregor... cotto, alvarez, mosley, prob a fair few others too.
Its a whole different ball game. 4 ounce ufc gloves are a complete fuckin game changer in comparison to 10 ounce boxing gloves. Mcgregors punching power will be significantly less in 10 oz gloves.
Footwork, boxing and mma both have completely different footwork. MMA fighters have to worry about kicks takedowns etc and so have to adjust their footwork accordingly. A boxers footwork suits fighting with just your hands, increasing balance when punching, helping power, defence, etc. The technique of boxing isnt just learnt, you do this shit so much it becomes habit, and having done this shit since he was a little 2 year old, floyd has this shit down pat as fuck, compared to conor whos an mma fighter.
Not to mention round times, Boxers generally work their way from 3 round bouts in the amateurs all the way through 4, 6, 8, 10 and finally 12 round bouts in the pros. That shit dont just come overnight. Theres more to it than just the fitness side too, its the mentality of fighting through 12 rounds, boxing (and fighting in general) is like 90% mental, 10% physical. or something like that.
Look, barring a lucky punch (a VERY FUCKING LUCKY PUNCH), mayweather clowns mcgregor, and if he chooses to, stops him in, pretty much whatever round he chooses. People sleep on mayweathers punching power, remember this mfer has stopped a fair few top level fighters. I could go on all day about this shit but ye I'm not going to.