Hiya Kenny....

I took some shots...all on a Canon 30D (sorry they're digital) @ ISO 1000, 1/160 @ 2.8...no adjustments made out of camera.

The exposures are the same as are the results....in terms of exposure...
It does seem that the 50mm lenses are sharper @ the edge when set @ 2.8, and being 1.4 lenses, they are stopped down 2 F-stops from wide open where the Micro was set for the shots...

The 50mm/1.4 Nikkors are nearly identical...the earlier base coated "S" seems to have brighter gray (near 18% gray behind the books), and the multicoated AIS has a (bit) brighter white, and the 50mm Nikkors seem to have a bit more contrast than the Oly50 whose contrast seems more like the Micro-Nikkor....

All shots @ ISO 1000 @ 1/160 @ 2.8...
It should be noted that typically on dSLRs, the more you stop down the aperture the sensor's response is a bit "off" such that the "correct" exposure as viewed on the view-finder's metering scale must be readjusted...and each lens is different, so that's why I shot these as close to wide open as possible....

Hope this helps (and doesn't violate the APUG's analog rules)

It may be easier to see the differences by going here
http://imageshack.us/f/15/6n4p.jpg/
and putting the cursor on the image near the top and clicking on the arrow to go to the next full-size image

Nikkor 60/2.8 Micro


Olympus 50/1.4


Nikkor 50s1.4


Nikkor 50ais1.4