For me, the difference between McDavid and MacKinnon is in MacKinnon’s stockier build. He’s an inch shorter but also 10 pounds heavier.
McDavid with his slighter build is more likely to throw on the brakes, circle back, and look for a trailer or a shot from distance. MacKinnon’s not even slowing down, he’s taking you straight to the goal line and there’s a pretty good chance nobody is stopping him.
It’s like watching Gretzky and Lemieux again. When the puck is on McDavid’s stick, you wait for something unexpected to unfold. When the puck is on MacKinnon’s stick, everyone in the building knows what’s going to happen and the joy is in seeing him do it anyway.