Keep thinking Barzal was more impressive in the WHL then Hischier in the NHL at 18 lmfao
Barzal was so impressive he didn't even make his team's stsrting roster the next year!
The Islanders decided not to rush a 16th overall pick, and that season had 45 wins and 100 points, and started the season with John Tavares, Frans Nielsen, Mihail Grabovski, and Casey Cizikas as the centers on the roster. Hischier was the first pick, and while the Devils actually came close to the 2016 Islanders, and played fine, no other center on the roster cracked 30 points, and Brian Boyle was going to miss time with cancer. Fair to mention that Travis Zajac missed time, but he's looked cooked for a while now. Hell, even his 40+ point seasons seem like "he gets ice time on a terrible team" sorta deal. He hasn't topped either 20 goals, or 50 points since 2010. There's also Adam Henrique, who started with the Devils, but like, especially if you're missing Boyle, you can't say no to the 1OA because your center depth goes Henrique-Zajac-Zacha-...Gibbons or Coleman?
Your argument here is mostly based on draft position. Players are wayyy more likely to be given a shot if they were a higher pick. Hischier was from a weak draft, Barzal went behind at least a half dozen guys who are already legitimate stars (McDavid, Eichel, Marner, Provorov, Werenski, and Rantanen), and it's not really his fault he didn't get kept up. It's harder to judge right now, given that Hischier is 20 months younger than Barzal, but it's not flatly unfair to argue that someone's 18 year old WHL season is more indicative of future success than someone's 18 year old NHL season.
(That said, if you use NHLe, which is a rough-math sorta thing that tells you about how many points you'd expect from a guy playing outside the NHL had he played in the NHL, I've got Barzal's 18 y/o season in Seattle at about 37 points, but the translation [30% of the points/game] may be off, teammates/ice time can still throw this very simple/only decently indicative metric off, and I actually don't know for sure if the translation factor takes into account that a player going to the NHL from junior is a year older at a high-development age, and if it doesn't, then you'd actually expect Barzal to score 37 at 19 based on his 18 year old season, rather than 37 had he played in the NHL at 18 - but clearly the metric isn't perfect, since his last junior season would have predicted 47 points.)