I really don't like OKG's take on players being "better centres" based on arbitrary criteria of how a player is supposed to play each position. I understand what he's getting at, but I'm not a fan. It's the same argument that's been heard time and time again with respect to the Norris Trophy and one Erik Karlsson.
The goal of any player in the game of hockey is the same: have goals scored by your team, and not by the other team. There are several ways to skin a cat, but if at the end of the game your team ends up with more goals, you've succeeded. A 'better hockey player' is one who contributes more to this goal. Regardless of whether you're playing centre or wing, defenceman or goalie, it doesn't matter where your strengths or weaknesses lie if you contribute positively to goal differential. If Karlsson gets beat 1-on-1 a half-dozen times in a game, but creates dangerous chances individually a dozen times, he's contributing more to the overall goal than a defenceman who allows nothing but creates nothing. The Norris Trophy should go to the defenceman who best helps his team. That's it.
In the case of a centre, if you're that much more lethal in the offensive zone than other centres, you can make up for other shortcomings in your game, and still be the better centre. Saying Dillon Dube is a better centre than Sean Monahan is saying he would make the team better by directly replacing Monahan in the lineup at centre, and that is ridiculous.