Agree or Disagree - ESPN's 10 Heavyweight Hitters in History?

I think you have asked not only a Great Question by agreeing with the list, as you indicated, but also by SUGGESTING that Jim Jefferies should be on that list.--- I admit to holding, what today is the extremely unpopular opinion, that Jim Jefferies was the Best Heavyweight Champion of all time. Having said that----I realize that I have a better chance of having my Mother-In-Law tell me how lucky her daughter was to marry me than I have of Y/A Answers agreeing with me ?