I actually can't remember lol. I know for sure I've had some very sharp ZDP edges, so it would seem that the folks in Japan really know what they're doing with ZDP, because I'd consider it significantly more tedious to sharpen than VG10 and I'm certain I've had sharper ZDP than VG10. I think the most recent I've been impressed with are all my current CQI Militaries, particularly the M4 and 52100 models, they both came hair whittling sharp.
On another note, this topic was much more relevant just a few years ago when these knives were sharpened by hand. Though I definitely appreciate the consistency of the robotic sharpening we have today, I was more impressed by it when I knew it was a skilled human putting that edge on my knife. Still, I'll take a perfectly symmetrical bevel and average sharpness over a wacky bevel any day. I don't mind touching up a new edge but it's irritating to have to reprofile a bevel right out of the box to fix a wavy bevel.
SHARPEN IT LIKE YOU LOVE IT, USE IT LIKE YOU HATE IT