Providence and Oregon should have strong runs by their respected milers.
McCarthy and McLaren have been running strong on banked 200 meter tracks. Many of the others qualified on oversized tracks. I think their ability to prove themselves on the surface the championships will be on is relevant, and will help at least one "Friar" medal.
Centro and Acosta are coming out of a well-tuned system which caters to high-performances (Vin Lananna's coaching, facilities, Nike). I don't know how fit Acosta is... yet, I have no doubt these two are the best prepared milers toeing the line; however, preparation doesn't always guarantee success.