I'll try to help.
This is an opinion, here goes, without writing a novel:
Pre-Series 70 NM Gold Cups have the best fit, form and function. They were hand fitted and I believe all subsequent were not at the factory. There are slight differences as well in the specs./dimensions as compared to Series 70 NM but I don't recall the subtle differences.
Series 70 NM. Seems to be the one most are compared to. Has a different feel as compared to pre-series 70.
'Modern' NM GC., great value, good shooters, purists may have different opinions...stainless is nice for durability, versus the previous two mentioned.
I've always considered the pre-series 70 NM GC to be the bar by which all other 1911s compare to. Obviously, there is a lot not being mentioned such as customization after WW2 to service pistols, gunsmith work, higher-end boutique manufacturers.
If you can narrow the focus of your question more with some specifics, I can give more specific feedback. In short, you really can't go wrong with any of them and my opinion is that if you own each variant, there is a tendency to prefer the original but I wouldn't really consider a PSS NM GC to be a working on the farm type firearm, more of a collectible piece at this time.