I know there's a 0% chance that any of this would convince you, and I also doubt that Puljujarvi would ever reach the ceiling that Hossa did, but for me personally, the similarities that I see are:
- Superficially, they're both big, fast, but not super physical wingers, kind of jumbo-sized skill players more than power forwards
- Off the rush, I see a similarity in the way that Hossa and Pulju both like to come down the boards, cut towards the centre of the ice, circle around to the far corner, then hang around near the net. This isn't exactly something that was exclusive to Hossa or anything, but for an example this play:
was one of the ones that gave me this vibe.
- Defensively, the similarity I see is less one of say, Nuge, who tended to "cheat" for defense, and more similar to Hossa in the sense that the pace of backchecking is an important feature in their defensive games. Similarly, neither are particularly aggressive on the backcheck, but tend to focus more on separating man from puck - Pulju needs to work at getting more effective on this, but the idea is there
- As another example where I saw a bit of similarity, this play:
Which didn't wind up working out into anything, still shows similar attributes to me: he used speed to gain position on McNabb, pushed the play to the boards while forechecking, and was also thinking ahead to get a new stick while doing so.