I agree about Bo but I never got to see Jim Brown play but I’ve heard that he would have been the best player at any sport you could have imagined. They say he was and still is the best lacrosse player to ever play at Syracuse. He lettered 10 times in 4 different sports. Would have loved to have seen him play in person.Bo and that is it!
Any bias aside, I would argue Bo is THE greatest athlete of my lifetime. He is the only person to be an NFL pro bowler and MLB all-star. And it did not matter what he would have done he would have been the best. His career was cut way too short.