I don't think Prydie will make international. I think he will settle to be a decent regional player (more that can be said for how Kristian Phillips is turning out) with the Dragons, he simply doesn't have the pace or power that North or Cuthbert do and I don't see him overtaking them in his career, add to that there is Eli Walker coming through of course. All those wingers are very young. I'd imagine Prydie wouldn't mess up if he got a chance, but equally wouldn't set the world alight either.
People have been giving Cuthbert stick over his defence. But in reality it isn't as bad as some others, and is not comparable to Ashton's defence and is better than Zebo's defence. Another who he is better than is Harry Robinson in defence who tackles far too high (see below), and doesn't make up for his weakness in attack. He looked far better at U20 than he ever did at the Blues by the way.
Liam Williams is the opposite really. A stronger sturdier option in defence, but offers no excitement in attack. Out of the three big wing qualities, pace, power, agility/jinkiness, he doesn't really stand out in any of them, and is pretty average.