I agree that Jackson is right up there too, although Jordan has not one but two comebacks, a couple of Olympic Gold medals while his Game 6 performance in the 1998 NBA Finals is the stuff of legend.
For me the key ingredients are: physically supremely fit, dedication, multiple world champion, a global icon, the best in your sport in your era, a showman who can take the sport to a new level, longevity and - as a bonus - can play another sport to a high level.
For me Michael Jordan ticks...