I think the Subban trade was made to clear cap space for Nashville to make a run at Duchene. However, with that being said, I believe that Duchene would address the Avs biggest need which is secondary scoring. Does Duchene want be a 2nd line center though?
As for Panarin, he (and his significant other) wants to go to a big market (or to FLA). I agree that he would be great in NJ, but I would give the edge to the Rangers with FLA still being the 1st place destination. I think that people forget that Miami Beach has a very big Russian influence.