I don't know much inregards to the lower weights but I'll take a stab at some of the uppers. Pretty easy to pick Tanner Gardner at 119.
119-Tanner Gardner
130-Matt Middleton
135-Zoukas (conventionaly wisdom) but if Vandenberg upsets in the second round take him the whole way throuh
140-Paul Oliphant/Darcy Riley
145-Seaman's Josh Miller-keep your eye on Eric Harris, he can be sporatic but strong
152-David Mullins--picking up speed!
160-Phil Hart/Nick Figge/Jimmy Stewart Tough bracket-inexperience may do in Stewart but keep an eye on him.
171-Nathan Payne-Will beat Sponsel if they meet in the finals buy Malloy could knock out Sponsel
189-Adam Monks-again, will beat Sponsel if they meet in the finals
215-Steve Cullor
275-toss up: Caleb Payne meets Jaccob Voegeli in the finals. Youth could catch up with Payne or light a fire under him. He's strong and can be quick. This one comes down to attitude.

Well, that's not all of them and maybe half will pan out for me. Just fun to speculate. Good luck to everyone!