Raccoon Jesus
We were right there
The fact that Gretzky was able to stay healthy and have the productive longevity he did should be accounted for in the caliber of player he was. I've heard Adam Oates talk about this as "not tolerating unnecessary contact" in reference to him being a skills coach for guys like Schiefele and Stamkos. Oates himself is a great example as far as longevity and durability goes. I take your point that McDavid, Orr, and Lemieux may be 'better' players, but if you expand the definition of who is 'better' to include the knack to play the game in a way that extends their durability and productivity, which I believe you should as career's are measured by their entirety, Gretz wins out.
You can still make the HHOF with a high peak (e.g. Lindros), but to be the greatest player to ever play you need the full body work of work taken into account and can't just normalize to Lemieux or Orr's career length.
I agree with that, I always say staying healthy is a skill, and especially for players at the top of the game when you're comparing legacies, duration matters. You never know what happens if a guy stays healthy, he may actually tail off early. That's why I say Gretz is the "greatest," he did it for a long time while being a target. We'll never know what could have been for Orr, Lemieux. My point is only that I think those three are 'better'--a large assumption on my part that I think had they had full careers they'd be looked upon more favorably than Gretzky. However--I do think if McDavid plays until 35 he has the opportunity to rewrite everything. His dominance over his peers is something to behold and I think the best is yet to come.
Like I said it's a hot take and I don't have much to support it, haha.