Kas was a much better rebounder and about the same on stocks. I'm not sure what defensive stuff you are referring to, but for any advanced numbers you have to take in to consideration that Kon played next to great defenders and played against worse players than Kas.IDK, on the surface yes Kas is a better athlete, but the defensive stuff tells me Kon has more "functional" athleticism.
Kas is a better functional athlete, I'm pretty comfortable with that take.