Me want the 50/1.2 hehe
My few cents, the Pentax 50/1.2 is the best of the 50/55mm f1.2 that I have (Revenon/FD/Pentax)
Mine is the Pentax SMC K version.
The FD is the SSC FD (non aspherical)
If I were to rank my preference it would be Pentax>Revue>FD (just my own pref)
Very informal test shot

Pentax K50/1.2

FD55/1.2 SSC
The FD OOF highlight is has the light ring at the edges (likely over correction)
I get the impression its sharper in the center though.
The bokeh off centre starts to swirl and the OOF parts abberate too wildly for my preference.
There the wildness is what put me off.
At least on the Revuenon, its less 'all over the place'
Honestly though, from my own lenses and from viewing those from others (like the Rokkor)
They are all highly capable lenses, but can suffer from bad bokeh if the bkgnd is not agreeable.
The FD for example is perfectly good (even great) if the bkgnd OOF is urban stuff. (I just don't like it for foliage)
So in the end its up to the user to learn the character of the lens and use to its strength.
My few cents
Yeah bro any advise for good 85 or 90 and 50? Hehe
I think you already got some of the best ones.

My experience, I found myself on a fools errand, trying to get a better short tele by looking at all the lenses available, including RF ones.
In the end, my own conclusion (for now.. )
1. Most of the short tele focal lengths (75,77,85, 100, 105mm) all fall into an optical sweet spot that makes most of them pretty good.
2. Size matters more to me for portability than brute strength large aperture, which I end up seldom taking out for longer trips
3. RF ones are not much smaller than SLR ones and sometimes heavier because of the usage of brass
4. The ones I had are as good as the new ones I got

So in the end, they are all good and there isn't any wrong in choosing one over the other.
I can be just as happy with using a J8 for the day as I would with a FA*85 or even a Nikkor 105/2.5.
Thats the problem too, since I end up keeping all of them.

If I wanted small, well built, sharp, consistent and reliable (as in good sharpness over most of the whole frame from wide open), I think its the FA77ltd.
But it really depends on mood for the day.