I am definetely not saying that they are the four best juniors in the state. I have only seen Moore and Onwualu play. Onwualu is a strong, athletic receiver; he'll probably end up as a high 3 star receiver. I can't really say anything about Moore. When I watched Minnetonka, I had not heard of Moore before and thus did not pay close attention to him.
Earlzo Singleton is a JUCO from Rochester that is supposed to be good (never seen him play before though). Although, unless Singleton is a stud, I don't really see Kill going after a JUCO receiver for the Class of 2013.