Floyd Mayweather – $560 Million
If your nickname is “Money,” then it figures that you got it for a reason. Mayweather is one of the few real mega-stars remaining in boxing. He frequently pulls stunts like showing photos of him actually counting piles of bucks on his private aircraft, or featuring his $6.4 million watch collection; or a receipt drawn on his $123 million checking account. He’s known for his extravagant way of life, and for not being afraid to show everyone how wealthy he is at the moment. Ask Instagram fans to predict the opulent vehicle he would drive of his six…