It doesnt make that much of a difference that hes playing men when hes the size of one already - in terms of being #1 vs #2
Oh but it does.
The fact that hes already able to ward off professional players despite not being physically developed is a massive feather in his cap and of all the attributes between the two players, probably the one that has the biggest gap. Hughes is going to get bigger and stronger, but so is Kakko.
It won't be enough to push him to the top slot in the draft, but can very well be one in terms of their overall effectiveness moving forward, especially in the playoffs.