My knowledge of the USNDTP is limited to the Gold Medal game of the U-18's so it is a very small sample. I agree that there are some very nice players on that team. One thing to remember is that the fact they have been playing together is not only an advantage when it comes to team play. The fact that players can react rather than think, because they have been playing together all season, can also make them look quicker and more instinctual.
Still, I think Milano, Tuch, and Larkin are all sure first rounders, and Eichel would be number one overall, were he eligible. Should they go at number 8? Probably not. But if the Leafs trade down, I would be happy to get any of them.
An aside: Tuch generally seems to be the most highly rated and he is certainly huge. I note that he managed to get three assists in the tournament, playing on the best line on the best team in the tournament, with Eichel and Milano. Milano is obviously very skilled and fast but a little small. Interactif may be right to focus on Larkin as the best overall prospect. But, as I say, this comes from watching one game!
Another aside: I generally like the prospect reports on lastwordonsports.com as they are well written and informative, IMO. They rated Kevin Fialla at #30. That does seem low to me, but the reason for the rating is interesting. They recognize his offensive gifts but say he makes Semin look like a defensive whiz. I do recall watching Fialla as the nearest Swiss player when Canada scored to win the quarterfinal at the 19:30 mark of the 3rd period. Fialla was gently gliding back towards his net.