Personally, I don't think the Caufield, Brink, or Kaliyev have the higher overall ceilings than Turcotte, Zegras, Dach or Cozens. I would say if you're picking a little lower, there's the value of maybe them having as high a ceiling as those guys. They would however be more inclined toward goal scoring.
But I've often found that playmakers at the lower level often have their goal scoring ability sold short. Someone like Dach, or Zegras, or even Hughes don't necessarily put up 50 goals against their teenage peers, and yet those numbers tend to hold steady at the NHL level.
So for example, someone like Zegras or Dach might very well score 20-25 goals at the NHL level because of their intelligence and hockey sense. They'll add 40-60 assists on top of it, but they'll get some goals. Likewise a "goal" scorer at the lower level might net 30-35 at the NHL level, but only add 30-40 assists.
Point being, after a lot of rambling, I think there's a tendency to sell "playmakers" a little short when it comes to scoring goals.