All three got a bit lucky via circumstances but they all got the job done. Louis and Lewis were given the chance to right things and both did so to devastating effect. Tyson didn't get the chance. I have to say Tyson and Louis were at vastly different career stages and Tyson was miles ahead per perceived invincibility. He already had a hugely successful career behind him and it was downhill from Douglas. Louis on the other hand was very much on the up and put forth an incredible career post Schmeling.