I don't think there's a clear favorite for first overall. If I had to put money on it, I think it's between Murata, Delisle and Wycisk. But if you look at some lists, people have Warren #1. I think it'll come down to team preferences, their evaluations and interviews of these top players.
Last year it was clearly Belchetz with Valentini going to USHL
Year before it was clearly Schaefer, with Roobroeck and Martin not far behind.
This year is a little but tougher, but if you watched the GTHL game last night, Murata was clearly the best player on the ice.