The greatest ever athlete

The question is asked often, but many variables play a factor when determining who the world's greatest ever athlete may be. People who excelled in multiple sports, were in their own league in their particular sport, sports that involve more skill than others where fitness plays the major role. Which of these will you use to determine your favorite for the greatest ever?

So we pose the question to you? Feel free to comment and add to the discussion or to vote on our facebook poll click here.