The reason I don't put Chops as high as the others is because he's really inconsistent. Sure he does well vs some really good players, but he has also lost to lots of people he shouldn't. He just doesn't place as well as the others.
Beating M2K is still a really big plus for Zhu. I think Zhu is likely better than PP but he has no results to prove it. I can see either one of them being better, but Zhu has better results as of now, so I put him higher. Shiz didn't do too well at Genesis, and hasn't really gone to stuff recently. I think the last few Florida tournaments he's been to he's dropped sets to linguini, hbox and col bol, right? He'd probably be up there with Mango if he still played/practiced, but he doesn't.