So if we look at current form, but also take in something about experience I have come up with something like this (it's preliminary, so I will probably change it with good inputs).
So I'll go for
Henrik Sedin (Sve) as 1'st center. (+PP)
Nicklas Bäckström (Sve) as 2'nd center. (+PP)
Frans Nielsen (Den) as 3'rd center. (+PK)
Mikko Koivu (Fin) as 4'th center. (+PK)
You could argue a lot about who should be 3'rd or 4'th center: But I would choose the above for their experience compared to Eller, Filppula or Barkov. If Koivu or Nielsen should change places is also possible, but Koivu is much more physical so that's why I am have as a super 4'th liner.
Johan Franzen is another candidate.
[Since I'm Danish I wanted to include Frans Nielsen and then he has to play 3'rd line!]
When it comes to wings it's more difficult since many players can both play several positions.
So I would from a preliminary thought have:
Right Wing (the Scandinavian team is a lot weaker here in depth, than on the left wing):
Daniel Alfredsson (Sve) 1'st R-wing.
Teemu Selänne (Fin) as 2'nd R-wing.
But as these two will soon retire, we might go for other options.....
Mikkel Bødker (Den) as 3'rd R-wing (good defensively as Nielsen).
Patrick Hörnquist (Swe) as 4'th R-wing.
Left Wing:
Daniel Sedin (Sve) as 1'st L-wing (to play with the twin).
Henrik Zetterberg (Sve) as 2'nd L-wing.
Aleksander Steen (Sve) as 3'rd L-wing
Patrick Thoresen (Nor) as 4'th L-wing. (since we need a Norwegian!)
We have also Jakob Silfverberg, Gabriel Landeskog, Loui Eriksen, Lauri Korpikoski & Markus Johansson to choose from.
I have mostly chosen a veteran forward line if it was for an important championship, but especially the RW could be made with younger players without Alfredsson and Selänne.
So that was my thoughts about the forward line so far.
Sedin-Sedin-(Alfredsson)
Zetterberg-Bäckström-(Selänne)
Steen-Nielsen-Bødker
Thoresen-M.Koivu-Hörnquist
Still need a 13'th forward: Lars Eller or Jussi Jokinen!? Anyways a guy that can play more than one position.