Quoting: wabit
Boldy has the higher floor, and the same 1st line ceiling. Rossi's luster isn't as bright as it was after the WJC (not his fault his team sucked), his limited time in the Swiss league, and being injured indefinitely in what should be a big developmental year for him. Boldy on the other hand has had a great season so far in the WJC and BC.
Just look at Kovanov. He was being looked at as much better prospect (2ppg in the Q) between the end of last season and now because he couldn't do anything in the KHL. The "what have you done lately" matters more than offseason scouting reports when it comes to prospects.
I actually agree with you there, except for two specific points.
1) Boldy's floor is considered to be a top 9 player, Rossi's floor is considered to be a 2nd line center. Rossi is for the most part considered to have the higher floor of the two prospects. I'd agree, however, that the way Boldy has progressed and looked of late means more then likely he's going to hit his potential ceiling of a top 6 guy.
Rossi's had a rough go of it lately, there's no doubt about that. But I don't think that necessarily drops his value or his ceiling at all, but it does push back his development a bit. So you're right there.
2) Khovanov seems to be back on track playing in the VHL this is once again producing and more importantly his attitude has dramatically improved as well. There's still a high chance he may well yet work out.