This fight cannot be taken seriously. Mayweather actually has a BETTER chance at winning with smaller 8 oz gloves, not the other way around. Floyd reacts extremely well when he is hit, which is very uncommon in boxing. If you watch him, when he is hit with a quality power punch, or actually gets hit square, he doesnt outwardly react, except if he smiles or laughs it off, and usually IMMEDIATELY counters. Ive never seen the guy get pushed around and punched for consecutive salvos. The only two guys who KIND of did that was Jose Luis Castillo, and Oscar DeLaHoya, but neither ever really hurt him or put him in danger of being knocked down never mind out.
So when you consider guys usually land like 18% of their punches against him, and he also somehow limits output of volume punchers by master ring generalship (notice he very rarely gets cornered, and he can cut off the ring with ease, while other fighters cant seem to figure it out and just chase guys around) McGregor has zero chance. There is no evidence, actually there is evidence to the contrary, which I just slightly touched on, that says Mayweather has a soft chin. Even if Connor lands a good punch Floyd IS NOT GETTING KO'D.
On the other hand all Floyd has to do is belly punch and jab for the first few rounds to give fans their moneys worth, and then will TKO him in the 7th or 8th round.