Well it doesn't matter what anyone says anymore.
To you ZWJ isn't ROCH Great level.
To pretty much anyone else that doesn't have blatant bias against HSDS, he is.
To you Xiao Feng is on another level than the ROCH Greats.
To many others, Xiao Feng may win against some of the Greats but he is still on the same tier as them, the same level.
In the end your subjective opinions will of course rule your objective rankings lol!