Ovechkin's peak leads over #10 in points, in %
29-25-27
McDavid's peak leads over #10 in points, in %
33-21-?
I would also believe that not too many people would put McDavid's 16/17 over Ovechkin's 07/08 despite the points lead over the field being a bit in McDavid's favor, because, well, 65 goals. That's not to say that McDavid has to score 65 goals to match Ovechkin's peak, but I think it is fair to ask for a bit wider point lead from McDavid if he is not going to score 65 goals and crash people.
So, going back to McDavid, unless he channels 11/12 Malkin and scores like 50 goals and 125 points next season, I don't think his three-year peak will match Ovechkin yet. On the other hand, he can add yet another Art Ross worthy season and I would be tempted to say that his 4-year peak then will be equivalent to Ovechkin's 3-year peak. Or better still, he can actually go ahead and have three 120-125 point seasons starting with the next one, and then we won't have to argue.