I would say Donald Bradman. For those unfamiliar, he was a cricket batsman who dominated the sport from 1927-49. Like Orr, his style had a significant impact on the game and how other teams defended.
How dominant was he? Well, in cricket, the objective is to score runs. Scoring 100 runs in a single innings, or at-bat, is called a "century". This is roughly equivalent to a hat trick in hockey. During the 2021 test cricket season for example- which is when each top-flight country plays each other, making it similar to an elongated playoffs- only 11 players had two or more centuries. In the NHL this year, 16 players had 2 or more hat tricks.
Donald Bradman averaged just under a century (99.9) an INNINGS. His entire test career, which again is the absolute best against best. In first-class cricket, which is more equivalent to regular season play as it's done at the domestic level, his batting average was actually a shade less (95 runs an innings). No other player for any country comes anywhere close, and he regularly put up double and even triple centuries during his career.
To look at it another way, Bradman's first-class batting average was 95.14, 28% higher than second place, which is 71.64. Mike Bossy, the NHL's career leader in GPG, is 0.76. That means you can roughly consider 100 runs to be equal to one goal. Obviously, if a player averaged a goal per game during a 20-year career, we'd consider them not of this earth. You're talking 1,500 goals, or nearly double Gretzky's total. That was Bradman to cricket- just a freak of nature who emerged one day from the Australian bush and destroyed nearly every record in the sport.
...
