Not really any of those guys. I see Chychrun falling out of the top 5 easily. It's always about the team's preferences. If a guy like Jones went 4th, any other defenseman can go outside of the top 5. Juolevi will probably surpass him.
I just can't see us picking a def instead of a forward right now. We lack scoring, offensive talent.
If Tkachuk and Dubois are gone, you go for Nylander or Gauthier.
If we're top 3 then no question we go with Matthews/Laine/Puljujarvi.
But outside of that? Guys like Dubois, Tkachuk, Nylander, Gauthier will take a year or two before they make the NHL and another year or two before they'll have the type of impact we're looking for. Getting them won't help us score goals any time soon. It's an IMMEDIATE problem that needs to be solved through UFA or trades (or one of the top 3 picks).
If we have to wait a year anyway, might as well go D, get a Chychrun/Juolevi/Sergachev who can fill Markov's shoes when his contracts up. Otherwise I don't see how we solve that problem.
I think we have to take into consideration what the market's giving us. Outside of Hedman in 2017 there are no top pairing UFA LD available (Yandle is best used in a sheltered role), and there are no Ryan Murray type players available who have top pairing D upside. Certainly not without a talented young roster player coming back (think Gallagher or Galchenyuk), which just creates another hole.
On the other hand, just this year you have guys up front like Staal and Ladd who have won cups and could easily return to previous form, Eriksson is a terrific two-way winger whose having a great year, Boedker is a young consistent ~50 point guy, and there's always the jackpot in Stamkos.
Then you have extremely talented young players who are available in Yakupov and Drouin. Kyle Turris seems to be working out pretty well in Ottawa and both these guys have more talent than he ever did. And they're probably available for non-roster players and draft picks.
There are avenues available to us to improve our scoring by at least as much as guys in the second tier of this year's forwards. With Matthews/Laine/Puljujarvi being a completely different story. The difference in replacement value between the top 3 LD and whatever other alternatives are available to us to solve our top pairing LD issue is too good to pass up IMO.