I'm a long time boxing fan, and could care less about MMA. This fight is a total joke, and you would have to be a fool to buy this on PPV. Having said that, I would have been interested if they made this a hybrid fight, where they would make it into a kickboxing match. It's not that Mayweather being great that would make the difference, but just the fact that McGregor is fighting a professional boxer. This is typical Mayweather, where he waits to sign for a fight until he knows he has a clear advantage (in this case, strictly boxing rules).
Like I said, I could care less about this fight, so I don't know much about the details involved. Will this be a sanctioned fight, which would allow Mayweather to go 50-0? Or is McGregor considered an amateur, making this more of an exhibition?
I believe MMA fighters need to wear gloves, but they're no where near the size of boxing gloves. McGregor may be able to knock guys out in MMA with gloves so small, that they're virtually fist. However, I doubt his punch will have anywhere near the impact with a boxing glove.