85mm: Jupiter-9 vs Nikkor-H vs Zuiko?

Jupiter-9 85/2
Nikkor-H non Ai 85/1.8
Olympus OM Zuiko 85/2

What is your favourite?

It depends upon the camera system I had

* Jupiter would fit any camera with a M42 mount
* Nikkor would fit all older Nikon cameras and with an adaption to AI, many more Nikon cameras including some dSLR's
* Olympus if you have an old 35 mm Olympus OM series camera

Unless a person had all three camera systems at hand and those lenses, there would be no way to have a favorite

I would go for the Jupiter. Cheapest and most adaptable.

The Jupiter - unless you were thinking of usaing it on a Nikon, The extra optical* adaptor needed would reduce it's attraction. It adapts easily to all others with only mechanical adaptors needed.
*Meaning there's another lense in the adaptor/