Pre-draft, Perreault was my favorite of that trio, and I have never been super high on Gauthier, so Perreault is my pick by default. I think his skating issues are a bit overblown, he’s probably never going to be more than average, but with his hockey iq he mitigates that quite well.
Leonard has the best chance of a long NHL career imo, but the lowest ceiling. Smith and Gauthier have the highest ceilings, but the lowest floors. In my viewings (BC and WJCs), I’ve come away a bit disappointed in their play selection and overall hockey IQ multiple times.