Too early to be sure, of course, but at this point it looks like the best HS pick in the 2016 draft may have been Bo Bichette, taken #66 by the Jays. Of course, he was passed over by ALL 30 clubs in the first round...but there it is.
There are couple of college drafts from 2016 who, as of now, have more career WAR than Bichette - but given he's younger, and plays a premium position (SS), I'd have trouble valuing Pete Alonso more highly than Bichette!
The first-round guys who were talked about as alternatives to Moniak? Senzel, Puk, Pint, Ray, Anderson - Adam Haseley has produced more WAR than all of 'em put together, and the Moniak critics here aren't, as a rule, very high on Haseley.
Bottom line, looking at the top three rounds of the 2016 draft - Bichette, a couple of pitchers who will have some value, the one-dimensional Alonso... and not much. Moniak may yet be one of the better returns on this group... and that ain't sayin' much.