From the few USHL games I've watched, I'd say Emery is improving the most quickly. He could be our best defensive D his freshman year. Gap control is really good, doesnt hit but with his size and how the nchc treated kleven that might be a good thing. Other than potentially Strathmann, the 03-05 group doesn't appear likely to have any gamebreakers at any position.
I was more hopeful Boisvert would be an instant impact player going into this year than after watching a few games. Despite his great hands and wristshot, at his size and without notable speed he might be stymied his freshman year like perron has been.
The HS guys seem to have been labeled to have lots of potential, but I don't know enough to be able to tell just how good they are when their competition is so variable.