I'm amused how you proclaim that Gretzky is only the 9th or 10th best goal scorer in history. He has the most career goals AND the 2 best single seasons for goal scoring -- so both longevity and peak.
And before anyone argues high goal scoring era, check out how he fared against his peers in his best years: In '81-'82, he scored 92 goals. Second place was Bossy with 64 goals.
In '83-'84, he scored 87 goals. Next best was Michel Goulet with 56. He was roughly 50% ahead of #2.
Ovi's best season was 2007-98, when he scored 65 goals (which is incredible - but only 24th best all time). Kovalchuk was second best that year with 52.
Gretzky may be better known for his vision and passing, but you're comically under-rating his goal scoring.
I always forget that you can't really make short posts on the internet without explaining everything, particularly on a site like HF
I am not "proclaiming" anything, it is MY opinion and it is of course based on facts (which is not that often the case on the internet)
For me, the first thing to look at is ERA ADJUSTED stats... Why? Simply because the game varies from an era to another. Comparing stats from the highest scoring era with the DPE for example is going to misleading, even stupid I would say. Goalie equipment and technique is some of the factors but it shouldn't be really necessary to explain all of that unless it would be to someone who has very little knowledge of the game
So without saying more, I'll go straight to the facts. If you look at pure GPG, this is what it looks like :
1- Mike Bossy 752 GP 0.76 GPG
2- Mario Lemieux 915 GP 0.75 GPG
3- Cy Denneny 329 GP 0.75 GPG
4- Babe Dye 272 GP 0.75 GPG
5- Auston Matthews 508 GP 0.63 GPG
6- Pavel Bure 702 GP 0.62 GPG
7- Alex Ovechkin 1,373 GP 0.60 GPG
8- Wayne Gretzky 1,487 GP 0.60 GPG
9- Brett Hull 1,269 GP 0.58 GPG
10- Bobby Hull 1,063 GP 0.57 GPG
13- Phil Esposito 1,282 GP 0.56 GPG
14- Maurice Richard 978 GP 0.56 GPG
etc
Below is what it looks like era-adjusted. I removed Denneny and Dye from the equation right away for obvious reasons :
Alex Ovechkin 1,373 GP 0.68 GPG
Mario Lemieux 915 GP 0.67 GPG
Maurice Richard 978 GP 0.67 GPG
Pavel Bure 702 GP 0.66 GPG
Mike Bossy 752 GP 0.61 GPG
Bobby Hull 1063 GP 0.61 GPG
Steven Stamkos 1031 GP 0.61 GPG
Brett Hull 1269 GP 0.58 GPG
Sidney Crosby 1218 GP 0.54 GPG
Gordie Howe 1767 GP 0.52 GPG
Phil Esposito 1282 GP 0.52 GPG
Teemu Selänne 1451 GP 0.51 GPG
Jean Béliveau 1125 GP 0.51 GPG
Peter Bondra 1081 GP 0.51 GPG
Wayne Gretzky 1487 GP 0.51 GPG
Jaromír Jágr 1733 GP 0.49 GPG
Also leaving a few guys out of this because they're still young so it's impossible to know how the rest of their careers will go. As of now, McDavid has a 0.61 GP, Matthews 0.79 GPG (wow), Draisaitl 0.55 GPG and Pastrnak 0.60 GPG
I was purely going off memory (which is why I said IIRC) and didn't remember correctly regarding Jagr but the real list would be more : Ovechkin, Lemieux, Richard, Hull, Stamkos, Hull, Crosby, Howe and Esposito
We didn't count Bure and Bossy because they retired too young.
You might be "amused" but what amuses me EVEN MORE is people drawing conclusions and laughing before even knowing the whole argument