Edited Aug. 21, 2019 at 2:28 p.m.
"Overrated" is hard to determine because it involves a lot of aspects, but I'll try.
For me, its Auston Matthews. And that is not to say I don't like him as a player, I think he is an absolute super star. But the level he is held to at this point makes the least sense to me.
The combination of the absurd amount of media attention on Toronto alongside the fact that, really, he was probably the 3rd most important leafs forward last year after Tavares and Marner (but I think a full healthy season allows him to prove that he is definitively more important than Marner) does it for me.
For example, the fact that the Hockey News just listed him as the 2nd highest individual of "power and influence" in Hockey is telling. I get that he plays in the biggest market, and so that ranking reflects that bloated attention and the money that he brings in for the sport there, but still. He hasn't won any major awards other than the Calder, and IMO Tavares is, right now, this year, a more important overall player even looking at just the Leafs, regardless of all the other influential and talented players on other teams.
Link to the Hockey News ranking:
https://thehockeynews.com/news/article/the-hockey-news-people-of-power-and-influence-no-2-auston-matthews
All this to say, Matthews is, in my books, probably a top 10 player in the league, but is definitely around the "10th" best player mark. Right now, in a game, I would definitely take McDavid, Crosby, Kucherov, Kane, Ovechkin, MacKinnon, Tavares, Hedman (healthy) and perhaps even Barkov ahead of him. I simply do not understand why the league and so many of its fans have, at 20 years old, decided he is so monumentally important as a figure in the league already.
I know Leafs fans might not like this, but from my perspective, when you have a debate as to whether Matthews is even the most important player on your team, and the Hockey News is ranking him as the second most important individual in the game as a whole, there is a decent amount of overrating going on. However, its not a bad "problem" to have is it. Lucky buggers.