I would love to see Connor beat Mayweather. However, boxing is a very technical sport and Mayweather is the Master in the boxing world. Connor has his work cut out for him, because he is definitely not anywhere close to Floyd when it comes to the technical aspects of boxing.
If Mayweather were dumb enough to step into the MMA ring with McGregor, he would be crushed in a matter of seconds. But, this is not MMA - it's boxing.