ubermeyer
Hall of Fame
There's not really a comparison. It's hard to even pick a GOAT of tennis, although Federer has made that easier for us. But for all sports? How do you define "greatest athlete?" Is it raw athletic ability? Even that's hard - best runner? best weightlifter? some combination (like a decathlete)? Is it some specialized skill - best golfer? best basketball shooter? Or some combination of athletic ability and skill? Then how much weight do you give to each? Or does it involve not just skill, and athletism, but winning ability, "clutch," etc? It's not really possible to just pick a greatest, unless you assign arbitrary weight to each facet and somehow quantify it. Which is meaningless.