It's Gretzky, and it is not particularly close. Here are #99's stats, which are essentially incomprehensibly amazing: http://www.hockey-reference.com/players/g/gretzwa01. read more
Michael Jordan has had a better career, and it's actually not even close if you take this question literally as a full career. The ultimate measure of success is sports in championships, and Jordan gets the nod here with six (vs four) including six Finals MVP awards. read more
There you have it, the most dominant athlete of all time—Wayne Gretzky. The man owned hockey. When the day you're traded is considered one of the saddest days in the history of your city, you now you were pretty good. And Gretzky was more than pretty good, he was unbelievable. read more