I think Benson is difficult to project right now. In order for him to exceed the other two he needs to develop physically and fast. Right now I don't think he has an elite trait
Peterka has elite speed and a nice shot. That immediately translated to the NHL game.
Quinn has an elite shot and a high hockey IQ. He struggled at first but last year he came back faster and noticeably stronger. Hes been able to find space on the ice and show his skills.
Benson has great competiveness, high hockey IQ, and nice hands but hes too easily taken out of the play due to his lack of speed, size, and strength. All of that can be improved but he has a ways to go.