The GOAT is never defined by one game, match, or season. You want to be the best ever, you have to do it over a period of time.This is only one way of looking at the issue of athletic greatness, In his Baseball Almanac, Bill James made a clear distinction betweee "career value" vs. "peak value". Career value makes sense if you are putting together something like a hall of fame. But, in some cases, a wrestler with a higher peak value could definitely defeat a wrestler with a higher career value if they were somehow able to compete at their very best.
To me, that is the true definition of greatness - not necessarily how much they won, but, heat to head, who would win. That's my opinion and others will disagree. That's ok. That's their opinion.