I say Pavelec, though I know it's not really possible given he has the contract of an affordable starter and the numbers of a low/mid-range backup. Though I suppose if the Oilers can move Dubnyk's contract, anything's possible (though I see Dubnyk's is expiring, so nevermind).
I wouldn't trade Kane right now. He put in his time--and had some success--playing in a less-than-ideal situation (for him) under Noel. I'd recommend the Jets evaluate him under a coach who is more open to using his "particular set of skills," and likely as not, his contract is going to look quite favorable in the next few years.
Ladd is slumping. Given that I don't expect production like last year, he may still be a little overpaid, but I am confident that he will start scoring again. If he looked like an unqualified first-liner last year--he did--the likelihood that he doesn't live up to a second line role is slim. I also don't see a tonne of LW depth (are you excited about Thorburn/Little/Frolik? 'Cause you know that's what would happen).
Byfuglien is a trickier situation and it does not please me that I must state from the get-go that any plans I would have for him would be as a defenseman. He's big and at 28 not likely to get more reliable. But Chara is huge and 36. Again, I think that Cheveldayoff knows where the average value of contracts is going--hint: not down--and I do think that given care, luck, and medicine he could be a very good 3-5 D on a very good team in five years. Add to that some speculation: he wants to be here, any perceived 'trouble' in the Jets' locker room had nothing to do with him, and any fitness issues--which I think were either inflated or invented--were lockout-related and a thing of the past. I also happen to feel that his defensive play is drastically under appreciated. I'd keep him until he shows any sign of falling out of the top 5-7 of scoring amongst defensemen. He's still third after Karlsson and Keith and has been wasting away on a confused third line for almost 10 games now.