I don't think I'm up for the whole top 20 just yet, but I will say that while a high ceiling is important, guys with good tools/ pedigree and performance who are performing at AA and AAA will always edge out lower levels guys like Chourio. Don't get me wrong he is way up there for me, but Weimer, Small, and Turang are all doing more than enough at high levels to be duking it out on top for me.