Jake when he got his contract looked like a one man show, he did it all and dominated.
Panarin has a harder argument because he plays on a super talented team, he's probably good all by himself, but you wonder how to argue that. But as stated, he has 1 year of experience.
Jake had his rookie contract, then bridge deal, then showed it and got his mega deal. Panarin is going for his second. There is also how valueable he'll be during it. Johnny Hockey wants 8MM, but he's 23, you pay him 8/8 you get him for the prime. Panarin (will be) 25. Lots of things in play here.
Lets look at it this way, Jake just turned 27, Panarin is turning 25. One has 8 years of experience, one has 1.
Really hard to compare the two.