I think Power goes #1, so probably scratch him off. But yeah, the Ducks hitting a homerun with this pick for the 3rd straight draft would be pretty tough to handle. Zegras and Beniers up the middle is a nice start, that is the ideal type of role for Beniers to play in the NHL. The Ducks will probably be pretty bad again next season so the worry here is they get another top 1-5 pick next season and start to build something like Colorado has.
Power will not be playing 1st pair in the NHL next season, no chance. They might sign him and he might even play in the league, but he won't be a 1st pairing defender. The evidence is tough to ignore with how much better guys develop with the 2nd year as opposed to leaving early. But with the #1 pick it's tough to not have him in the league, while it is clearly better to have players play two years, the last time a #1 pick didn't play in the NHL in his D+1 was Erik Johnson 15 years ago.