Wall without even blinking.
Bradley has been very impressive, and the skies the limit for him, but Wall should be making the leap, now that they have started getting some of the cancers away from him.
I would go so far as to say that if Wall had come up with guys like KG, Pierce, and Allen around him, and a coach like Doc, rather than idiots like Blatche, Young, and McGee, I think he would be knocking on the door of being a top 5 player in the league very soon.
As for the high school rankings...I think that is a bit decieving, because even though ESPNU had Bradley over Wall at one time, as a college prospect, Wall has always been the top NBA prospect from that highschool class.