Would be pretty disappointed at this list for Castron. Guys like Miller, Alexeyev, and Woo are barely first rounders on McKenzie's rankings. Button has Woo at 31 and Alexeyev/Miller are around 50. Pronman doesn't even have any of the three on his top 40-50ish list. Wilde and Smith would be fine with me, but the other three would be pretty significant reaches at 17.
All of the guys you mentioned had Strome over Barzal in 2015. I had Barzal over Strome. All of the guys you mentioned except Pronman had Keller outside the top 7 in 2016. Pronman and I had Keller #3.
I'm not saying I'm always right. I am notoriously terrible at forecasting goaltenders and we all have players we over or under-rate. But Miller is #15 on my list right now, #16 on McKeen's, and in top 20 range on the list of my favorite scout Steve Kournianos (the Draft Analyst).
Is Miller all the way down at #30 on the ISS list? Sure. But it's important to know that he wasn't even on their first round radar until April. These scouting services are very slow to move guys up or down the rankings with too much volatility -- it's like admitting you were wrong before you have to. But Miller's potential as a physical force with 40+ point upside at LHD, with tremendous size/strength/skates/smarts/athleticism is extremely tantalizing.
It's also important to know reasons why players may be over or under-ranked. A player like Alex Alexeyev only played 45 games with Red Deer of the WHL due to a series of maladies/injuries which plagued his draft-eligible season. This has likely knocked him back into his usual mid-to-late-20s rankings. But he has it all -- he's big, mobile, smart and physical with a great shot and tape-to-tape breakout passing. He scored 37 points from the Rebels' backline in those 45 games despite only being at 100% health for maybe half of them. He's a LHD with top-4 upside. Would I rank him ahead of Ty Smith? Certainly not. But would I take him over universally higher-ranked Jared McIsaac at the same position? Without a doubt.
All I'm saying is where these players are ranked by the CSS does not mean squat, and should not be a barometer of whether or not we should draft them. I keep a flow chart of where all the major prospect sites rank prospects, and each one has its own preferences. CSS and ISS weigh in the favor of larger players. McKenzie tends to weigh in favor of CHL players, whom he watches quite often. Pronman likes the smaller, skilled players. He's had Bokk ranked in his top 10 all year, a player who some services have as a second rounder.
Last year Steve Kournianos' battle for #1 overall was not Nico v Patrick but rather Nico v Mittelstadt. He took a lot of flak for that, but now it does not look like a bad argument. I remember being called 'a click-bait amateur who never watched hockey in his life' for ranking Barzal over Strome in 2015. It doesn't look too click-bait-y now. But we can also be wrong with the chances we take -- in the same 2015 draft I was one of two writers (Red Line Report was the other) who ranked Denis Gurianov in the top 10. I though he was the next Tarasenko, but clearly I'm far from flawless.
So, back to K'Andre Miller. I recently was writing back and forth with Cam Robinson (Dobber Prospects) about Miller. Robinson thought I had Miller ranked too high, but I explained my reasoning. Cam (who is awesome, by the way) admitted he had not seen Miller enough, and promised to pay more attention to him at the IIHF tourney. So, perhaps Cam will move him up in the rankings, too. Maybe he will still disagree -- and he's certainly a guy I respect the opinion of.
In conclusion, I think all of our arguments about who our team should draft should have a stronger backing argument than where a specific ranking service has ranked them. If the Devils took Bokk at #17 many pundits would attack the pick as a reach, while Pronman and I would call it a steal. If the Devils took, for instance, Lundestrom at #17 many pundits would hail the pick while I gagged on my own bile. This is part of the fun of the draft.