As this is for Canon, so it does not apply directly to your case.
In the review, the planar was put against CANON 85mm L F1.2 II not interms of sharpness but rather in coloring and contrast curves which also gives the 3D effect. I'm not sure about the comparision between Nikkor and Zeiss 85mm f1.4 but for me, it's one big reason for me to get one.
One is old and discontinued. Film era. Lower perceived value and marketability but still produces dazzling results or so I've heard. Typical used price for a good condition piece should be around S$600 - $800.
One is new, hot-shot series that is the result or merging a legendary name with a respected and capable Japanese manufacturer, probably using slightly updated variations of established optical designs, priced to be perceived as valuable and desirable.
Yo, another contender of sorts is the Samyang 85mm f1.4 haha
Manual Focus, and most reviews rate it as sharp at f1.4.
It is sold under other brands such as Rokinon/Opteka/Vivitar/etc...
Around $450, gotta ship it into SG though...
Zero Divine is referring to autofocus on the Nikkor AF 85mm f1.4D on cameras with autofocus ability.. but since ur using fm2 slr i guess ur fine with either choice. CZ is shinier and prettier, while a used 85mm f1.4 AIS will look rugged (and alot cheaper). Why not save the money and buy better film? hehe