I'm judging AM & McD on what they are doing. Both are 1C's so that part is a wash. McD is ahead in ppg but AM is closing the gap. AM scores more goals. He is the guy who scored 4 in his first NHL game! That is a hatty +1 in his very first game, fcs! I think most of us thought that was a complete fluke at the time but he has continued to score goals at a very high rate since. Almost exactly the same G/gm as Laine. A little less in G/60. The difference in linemates is very hard to quantify. I'm sure it has helped AM to some extent, but I think, probably not much.
Laine is younger, less developed. It won't be too much longer before he gets the 1C and top line minutes. So far he has not been ready for that. I've been very impressed by the development in his wider game this year. He is still improving in many ways. I think he is going to be only slightly behind McD and AM 5 years from now. He will be 3rd in a close group of 3 - really only because of W vs C.
Connor, Barzal, Marner, Nylander, Ehlers, Aho and a few others are just not on that level. They are all young and some of that group may pull to the head of that group while others fall back a bit. But I will be surprised if any of them can even come close to joining that top group. I'm not sure where Eichel belongs just yet and then there are those who haven't really arrived yet, like Dahlin & Pettersson. Pretty hard to rate anyone on a third of a season at 18/19 YO.
It is going to be a lot of fun watching these young players over the next several years. In 5 years the hierarchy will have been established but right now there is a lot of uncertainty and speculation.
I wonder if we have just seen the arrival of an unusual crop of very highly talented players or is this the new norm? According to some there are at least a couple more outstanding prospects for the next couple of years. Great time to be a hockey fan, I think.