Walton's D+1 season NHLe of 0.210 puts him slightly ahead of McGroarty's 0.205, and a bit behind Yager's 0.235. It currently ranks as the 10th best D+1 of Jets draft picks (out of 41 I'm tracking, going back to 2011). Not bad for for a 6th rounder!
Kevin He is 13th with a D+1 NHLe of 0.177 - behind Gustafsson and McGroarty and just ahead of Rashevsky, Lambert and Barlow.
Loponen is 30th with a D+1 of 0.093. Not great for a forward.
Freij is 32nd with 0.089, but he's a defenseman and the NHLe and young player usage in Europe makes things a bit weird. Between Freij and Loponen is Samberg's D+1, so I wouldn't worry much about Freij just yet.