Edge
Kris King's Ghost
This isn't a go at you specifically but I think we too often always expect players to be 'better' than their prior comparables but in most cases having them be the same level would be an excellent outcome.
Like I've compared Lias Andersson to Steve Rucchin, Kakko to Frolov, Lafreniere to Nash, Lundkvist to Stralman, and Fox to Rafalski, and been told in all five cases that I'm underselling the prospect.
Unfortunately, that does happen quite a bit. With young players/prospects, the future is always brighter than the past or present. It's very easy to start inching expectations higher and higher.
I do think some of those expectations are probably on the lower end --- especially for Lafreniere and Kakko, but I also get the thought process as well.
I do think that Lafreniere and Kakko are very much unlike any prospects we ever had --- in terms of Day One potential/projections, draft position, etc.
The two possible challengers to the claim are Leetch and Kovalev. Though I'd argue Leetch at age 18 didn't come in with nearly the expectations, and both he and Kovalev had more question marks at the same stage. Leetch eventually got to that level, and Kovalev, though dazzling, was always a player I had more concerns about than most. (In many ways he was genesis of my opinions on "skill" vs. real-world applications.)
Taking aside the pace MacKinnon was cutting this past season, production-wise you're really hoping for something more long the line of what Colorado was getting from MacKinnon prior and a typical Rantanen season. And I don't think that's an outlandish expectation (nor is the possibility that someone like Lafreniere hits a crazy next level at 23/24 like Mackinnon has done).