Collie had better hands, was faster, quicker, ran better routes, did better against press coverage....
which Hoffman struggled with, and he and was probably as good of a blocker. Hoffman was taller, and maybe you could give a small edge as a blocker, Collie was clearly better at every thing else. And Collie is just a flat out better athlete.
Cody was very good, but there's a reason he didn't make the NFL and that Collie would have had a long and very good career if it were not for injuries.
I like Cody, but Austin was just not a step above Cody, he was several steps above Cody.