Care to explain why? Im in the same boat as the op, looking at the same three scopes, so any info would ve appreciated.
I love my ZP5. I wouldn't go as far to say it's better than anything on that list, except in glass, since certain features are more important to certain people. I've spent some time behind Hensoldt, S&B, etc., (no Tangent Theta though) and the optical quality in the Minox, to my eyes, is tops. The Minox image is sharp and free of any noticeable CA. The turret feel on the Minox is very good, but at 14 mils per turn, the clicks aren't as firm as something like the Razor 2, since it's a 10 mil/turn. They're still very positive and tactile, but the Razor is a touch more positive in its clicks. Tracking has been excellent on my scope and I haven't heard of any other users experiencing tracking issues. The Minox doesn't have locking turrets, if that's important to you. Turret layout is similar to most others, except for the Kahles. Minox has the traditional left side parallax/illummination, elevation on top, windage on the right. Illumination on the Minox isn't quite as bright as the Razor, but it's still very good and more than usable in low light conditions. Removing parallax on the Minox is very easy and I like that the parallax indicator is a triangle, rather than numbered for distance. The eyebox is very generous on the Minox. FOV is also very good. Warranty on the Minox left some people a little skittish because it specified the warranty was only good for the original owner, but a few guys have been the second owners of scopes and sent them in. Minox has honored the warranty even though they weren't the original owner. I believe Mike at CS Tactical said they are rewriting the warranty to be more in line with other manufacturers that have what amounts to a no restriction warranty. My Minox has the MR4 reticle, which I love. I really like the limitless zero function on the Gen 2 Razor. The Minox is the typical "loosen the set screws, spin the turret to zero, and re-tighten the set screws". The Minox also weighs considerably less than the Razor. Overall, the Minox is a top tier, Alpha-level scope that should be in the discussion when comparing other top scopes, but again, that depends on what features you're looking for or what you'll be using it for.
Edit: I also have the Gen 2 Razor on a second rifle, so I've compared the two side by side considerably. My experience with Kahles is limited to looking through a few at matches, but no real time shooting behind one.