Watched somewhere around 10 games of his for Leksands, and this guy really might be a freak of nature. Looks like a solid skating foundation/stride/coordination already for such a large/unusual frame as a 17 year old hockey player. Needs to work on explosiveness, but by no means looks "clunky" on the ice, his stride and body reminds me of a linebacker in skates but he's deceptively agile for his size, which is great to see for Bichsel as a young defender. Pairing what he's shown skills wise junior levels with his play this year in the SHL, there are so many signs of untapped offensive potential and his soft hands for a 6'5" frame along with his desire to be apart of the play certainly help his case.
The biggest knock on his game in the SHL at this point in time is probably his play under pressure. Typically makes his mistakes handling the puck behind his goal line, sometimes sending pucks into middle of his own defensive zone to absolutely nobody when being forechecked, or will throw it around the boards in what looks like a gamble hoping that there will be support. Otherwise, defending on the rush he typically displays a sufficient combo of speed, reach, and positioning to keep pucks to perimeter, very often maintains a tight gap through NZ and lays heavy hits at pro level. Relied upon heavily for killing penalties, he'll typically plant himself in the net front and he generally has an active stick and attempts to disrupt nearby puck carriers. I think these mistakes are mainly a result of him still adapting to a much faster/more skilled game compared to the junior Swiss hockey circuits. He is a 17 year old being frequently relied upon for penalty killing through 25ish games in SHL, playing between 11-12 minutes a game. Mostly PK minutes and mostly defensive zone, not really getting opportunities on offense, also gets benched after some mistakes. Weird deployment/usage considering how young he is and them holding him at the SHL level and not getting reps anymore at J20. I hope he gets more looks next year and can continue to grow and get confidence.
Finally, the best part of his game, is his ability to play with a mean streak already at a pro level. Meanest defenseman with skill in first two rounds, and it's not even close. By the time he's getting NHL reps he should be a physical force, and will be thanks to being an absolute bully some nights. Takes occasional penalties but they don't always look like boneheaded/pointless, in my relatively biased opinion many of these plays would probably slide in a more physical North American game, he will still need to show growth in making simple/quicker plays under pressure in the SHL before transitioning to smaller ice though. Won't be shy to throw his weight around, though, and I don't think the physical part of his game will ever be a question mark and should continue to be a big part of his game. I think playing in Sweden is a great opportunity for Bichsel to grow his game due to the skill level and open ice, and he is certainly mobile enough with his frame to play there at this point in time and work on his own offensive/transition game.
With his play considered, I would say he is a really safe late first round pick that at absolute worst will be a steady bottom pair defensive defenseman that kills penalties in the NHL thanks to his current toolset today. But the whole package of size/skills that belong in the first two rounds of the draft combined with the sound skating foundation could be so much more, and I think Bichsel definitely has the potential to be a top pairing defender that is a nightmare to match up against. I can see a team that is looking to swing for a homerun pick that has done their homework and knows this guy well taking him between 15-20, maybe earlier if he is a real character guy, I can't comment on anything like that though. Hopefully he's like another Seider (less dynamic but significantly more physically mature at the same age I'd say), in that Seider definitely developed extremely well following a relatively low scoring DEL draft year before going to Sweden. I think with the right team drafting him (I selfishly pray for Toronto), more development time in SHL, you may have a real promising talent here in the best recent Swiss prospect in memory.
All my own opinions/observations, so relatively biased of course.
TLDR I think the pros greatly outweigh the cons and the lapses/mistakes are more a lack of experience at this level of hockey then awareness issues, he jumped from Swiss hockey circuits to Sweden for this season and has carved out a role on the second pairing on Leksands after only 11 contests with the junior team and now 25ish in SHL, I think he is a bit underrated so far leading up to the draft. Considering Bichsel's upside, the sky's the limit and 1-2 years from now he could be a dominating force if the activation/experimentation at the pro level continues and things bode well for him. Like I said, puck skills and mobility/athleticism are apparent here with the big frame. This can be something.
He's most Pronger-like too in terms of being a mean one for this years top end of the draft and I'm all for it. He's got the size/skill signs with meanness so far to be the kind of guy that could turn any fringe-playoff team into a contender.