Jon “Bones” Jones is currently the best fighter in UFC by a large margin.
Floyd “Money” Mayweather Jr. is currently (and has been) the best fighter in boxing for seventeen years.
Fans have debated since UFC came to the forefront of popularity in America about whether a boxer could compete in UFC or if a UFC fighter could compete in boxing. Logically, one would think most likely not. Jon Jones has seven inches in height and 50+ pounds on Mayweather, so the weight class demographics don’t match up between the two. Nonetheless, Jon Jones thinks without a doubt he would be competitive in a “hands only” bout against Floyd Mayweather.
Check out what Bones had to say about in this interview with Power 105.1: