You're entitled to your opinion, but Zegras and Hughes are not even in the same vicinity of talent. Zegras clearly benefits from Hughes than any other prospect on the USNTDP since he gets to play as his winger. I consider Boldy a better prospect in the long run.
In the games I've seen, I didn't feel as though Zegras and Hughes were very good together. Both need the puck on their stick to make things happen, so if one is controlling the play, the other can't do their thing.
This is the lineup I would go with:
Caulfield - Hughes - Caufield
Turcotte/Zegras - Zegras/Turcotte - Boldy
Farrell - Beecher - Rolston
Gildon - Moynihan - Lindmark
Weight
Puts each of Zegras and Hughes with more goal-scoring oriented players who don't need the puck on their stick to make things happen. Turcotte is a puck-carrier in his own right, but more of a north-south, puck distributor than the type who needs to hold on to the puck and find the perfect moment to find the open man.
Realistically, Zegras is a smarter defensive player than Hughes, and plays with more intensity. His skating is probably on par with that of Jack, his edges may even be a notch above and his one-on-one dekes are better from what I've seen. What sets Hughes apart is his IQ, and he also has a better shot.