Is greater than anyone's and he's been retired for 11 years. Boots Ennis is one of the best in boxing yet most people don't even know who he is. Same goes for Inoue. Sure in their own country they're known. But even still in America many wouldn't even know the name. They'd think he's a cartoon character with a name like Boots. Guys like him have padded records and are talked about like they're Money May. They're not even close and never will be. How many big fights has he had? Mayweather is taking a hit outside of the ring financially but he's still the best there ever was. Floyd, Ali and Tyson are the 3 most well known boxers of all time decades after retiring. People mention Sugar Ray 99 percent of Australians don't even know who he is. No one comes close to Mayweathers longevity. No one came close to generating the amount of revenue he did. Love him or hate him no one comes close to him in the history of boxing across the board. He gave many fighters a life changing pay day. All because of May day.