In terms of hype, he is only below Crosby/McDavid. Maybe Eichel too. Eichel was great as well, not sure who would have been picked higher between him and Matthews. Probably Eichel because many scouts thought he had a NHL-ready body and he had a good showing at the worlds (also kept up with the pros very well). On the other hand, Matthews is producing over a PPG in a men's league. Stamkos was a late bloomer in his draft year. Tavares was a prodigy but people started getting tired of him being #1 so long and always criticized his skating or lack of emotion.
Not saying who's better between all of them, just simply how they were evaluated as prospects at the time the draft was rolling around.
? No he wasn't, he was practically the consensus #1 all year and put up 92 points as a 16 year old, and was known as the top 2 prospect (other was Tavares) in Ontario for his age group since he was like 13. Only thing that slowed down the hype train on him was Kane, Ganger and Tavares all had crazy years his 16 year old season, and Tavares was the same birth year. But Stamkos was far from a late bloomer, he was on the WJC team at 17, and was considered the #1 guy for the 2008 draft before he even played an OHL game.
Matthews is in that Tavares, Mackinnon, Eichel, Stamkos, Malkin prospect tier. Personally, i like him more than any body in the last 10 years outside of McDavid. His ceiling is a more prolific version of Toews, Kopitar or Bergeron.