Isn't JFX a knock-off of another brand listed up there? I'm not sure, but I think it's Xoar.

Either way, I voted for APC W. I know they don't have the greatest spool-up, but they have great thrust. Plus, if you believe Pe Reivers, APC-W props are about the most efficient props out there (besides Mejzlik 3-blade props). To be honest, there are several of those props I simply haven't tested (Vess, Xoar and Zinger included) that are high on most people's list of props.