Well, you just asked a subjective question without giving any supporting info on what YOU want.
After going to the MarStar W-site & looking at the pretty pictures:
If I wanted a double action 9mm I would buy the NZ-85; because the pic of the NZ-75 shows a slide mounted "hammer drop" type safety which I don't like, while the NZ-85 has a frame mounted safety (cocked & locked).
If I wanted a single action 9mm I would buy the NP-29 as illustrated in the pics, because replacement parts (trigger length) are easily available. (Generic) Colt 9mm mags interchange.
I voted NZ-85 ONLY because I had a CZ-75 that I wish I still had.... :roll:
If I buy another 9mm it will probably be a NP-29 :?