Hopefully this hasn't already been posted upthread -- apologies if it has.
This excellent thread contains data on VsX, a system developed on the History board to compare players across different scoring environments. In brief, instead of "adjusting" stats, we look at how far a player outran his competition. This is, by all indications, the best tool available for conversations like the one we're having right now.
Last season was Connor McDavid's 7th in the NHL.
This post contains VsX data through 7th seasons, which is a perfect data set for comparing McDavid to the rest of history
not including what he has done this season.
Wayne Gretzky | 145.0 |
Connor McDavid | 104.5 |
Phil Esposito | 103.3 |
Howie Morenz | 102.2 |
Gordie Howe | 98.0 |
Mario Lemieux | 97.0 |
Jean Beliveau | 96.1 |
Bill Cook | 94.9 |
Charlie Conacher | 93.6 |
Bobby Orr | 93.4 |
Mike Bossy | 92.9 |
Andy Bathgate | 91.6 |
Alex Ovechkin | 91.3 |
Sweeney Schriner | 90.4 |
Bryan Trottier | 89.7 |
Sidney Crosby | 89.7 |
That speaks for itself. McDavid's number will actually get better in his 8th season because he will finish with a ludicrously large lead over the rest of the field.
Of course there are other factors such as defensive play and playoff performance. But as a regular season scorer, yes he is the 2nd best of all time through this point in his career.