Of course, this is a subject open to opinion. I think the only way to say which was the greatest is to get the greatest from each sport (that is, the one who dominated/s their sport the most) and then put them all together. From this, you decide which one dominated their sport by the largest margin. What are your thoughts?

Sports to consider (you can add more):
Football
Soccer
Baseball
Basketball
Boxing
Snooker
Pool
Billiards
Tennis
Golf
Formula 1
Rallying
Athletics

And many more
Mick

...dot com bold typeface rhetoric.
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Discussing whether or not the Brother is hardcore?