A salient point, and one that most people overlook. Mayweather is not a 'nice guy.' He is brusque, obnoxious and generally behaves in a manner that most people would not find a appealing. However, just because he is a 'bad' guy doesn't take away from the fact that he is one of the most tactical boxers in the world today. Manny Pacquiao is a better puncher, but Mayweather is easily a better boxer.
People who know the sport of boxing knew that Mayweather was ahead. Be they pundits, betting websites, or simply fans of the sport, it was clear by the 10th round that Pacman had only one option left ....knock Mayweather out.
On the otuer hand, mst people who don't follow boxing thought Pacman was winning because he was 'aggressive.' Unfortunately, aggressive doesn't mean much if the punches do not connect (only 19% of Pacman's punches connected). Ironically, Mayweather not only threw more punches that connected, he threw (overall) more punches!
Mayweather is not the type of guy one would leave their kids with for a Sunday school chat, but that seems to make many people overlook that as a boxer they're not many people that can conceivably take him on a good day. He is one of the best defensive specialists that have existed in the sport.
They’re not many people = there are not many people