Caufield's one elite attribute has always been his shot. Catton is better at everything else.
Caufield was clearly a complimentary player even when he broke USNTDP records on one of the most stacked teams in the program's history. Catton drives the Spokane Chiefs. 45% of the entire squad's offence comes within 2 touches of his stick. Catton is simply not a "limited" player, he's actually an incredibly well-rounded, high-skill player. He just needs to get stronger.
Caufield is also an actual small player at 5'7" (albeit fairly stocky). Catton is only "small" in the same way that Kucherov, Makar, the Hughes brothers, Pettersson, Panarin, etc. are. He's a junior player with a junior frame that'll be an NHL player with an NHL frame.