Here is my list (not including the goalies)
1. Dubois
2. Werenski
3. Bjorkstrand
4. Anderson
5. Milano
6. Carlsson
7. Bittner
This takes into account career projections, where they are at now, how high their ceilings are, and how likely they are to reach their ceiling.
Dubois, imo, is for sure #1. He is going to be a sure-fire #1C in the league, whether it is in 2 years or 5.
Werenski is closer to making an impact, but he is still #2 on my list....mainly because I don't see him being a true #1D - I see him more as a complimentary top pairing guy...a more offensively minded Ryan Murray. (a side note, I cannot wait for the day that he, Jones and Murray all play to their potential. It'll be something special).
Bjorkstrand will for sure make an impact at the NHL level, but I don't think at the same elite level that Dubois/Werenski will be at. He's a bit small, but I think once he hits his prime he will consistently hit 25 goals a season. Hopefully one day, it will be like having 2 Cam Atkinsons on the team. His ceiling is sky high, but I don't see him as likely to reach it as the previous two guys in front of him.
Anderson will be a bottom-9 guy in the NHL, and there's nothing wrong with that. I sort of see him producing at a similar rate as Matt Calvert. Not nearly as high of a ceiling, but I think he will atleast reach it, if not exceed it.
Milano is a boom or bust kind of prospect. He is very gifted in the skills department, just needs to develop his game more. The second half of the past season was a big step forward for him. I think this next season will determine if he can reach his ceiling.
Not much is known about Carlsson, but scouting reports coming out of Europe so far sound good.
Bittner seems like a mix of Jenner and Hartnell. He's got size, grit, and some skill. I could see him taking over Hartnell's roster spot in the next year or two if he can make the jump to the NHL. Last season was a lost season for him, which hopefully did not hurt his development.