I dof my hat to Usain Bolt as I personally believe if he wins in Rio he will be the best athlete in the world ever
Out of interest, who would you place above Bolt at the moment then? Bolt currently has 6 Olympic Golds, 10 (soon to be 11, no doubt) World Golds and 3 World Records...
Whist he has a lot of Medals I think Daley Thompson, despite his somewhat erratic behaviour, competed in a 10 discipline event and won two Olympic Golds and also Michael Johnson.
Also there should be a mention for Jesse Owen given the extreme circumstances