It's a pretty safe bet to consider Floyd "Money" Mayweather pound for pound the best boxer around today, He may even be the best fighter of all time.. Mayweather is 45-0 and has beaten some pretty dominant names in boxing. He has beaten such boxers as Oscar De La Hoya, "Sugar" Shane Mosely, Rickky Hatton, Miguel Cota and most recently Saul "Canelo" Alvarez. These are great fighters but there careers have been brutaly damaged from the loss to Mayweather.
Mayweather is such a great fighter that he has ruined careers of some of boxings best, such as Zab Judah. Judah was 33-4 before he fought Mayweather. Since that fight he is 9-5, including an embarrassing loss to Pauly Malignaggi. Shane Mosely is 1-3-1 since his loss too Mayweather. And Robert "The Ghost" Guerrero has even been able to get a fight since his loss last May. Although he will fight next month. Mayweather's last 10 opponents are a combined 26-19. That's a stat that most people don't even look at but speaks volumes of how great Floyd Mayweather really is. The only fighter, excluding the ghost, that hasn't lost since there loss to Mayweather is Canelo Alvarez. He is 1-0 since his loss last September.
In my book Mayweather is the best boxer in the sport today. Marcos Maidana has more to worry then just today's big fight. Perhaps he is fighting for his career.