Right, the reason Orr beats Gretzky is because Orr was the more complete player. It's no secret that defense wasn't exactly Gretzky's thing. He didn't ignore it exactly but, well, it's kind of like Marc Savard on defense. OK, yeah, sure, I can get that done, but that's not why I'm on the ice. As a defenseman, even a highly mobile, offensive minded one, Orr couldn't do that.
Since I consider hockey the most athletic of the major sports, and Orr was the best all-time hockey player ever, I consider Orr a very, very good candidate for the most athletic all-time athlete.