For me it being in my mid 40s now it was the original religious tech war. Now we have Android Vs iPhone etc.
The two most impressive things about the ST were the late addition of midi, and that it was designed and launched in some absurdly short time - six months or less?? - which explains many of the compromises, and it getting Gem.
Having had Amiga snatched from under him, Jack Tramiel wanted a fast response to spoil their party. Tramiel who'd only left Commodore the previous year.
There's so many what-ifs to play with this timeline.
Except for 3d, at which the amiga was utterly awful.
https://www.mobygames.com/game/atari-st/populous-the-promise...
The gang signs of 80s nerdom. ;)
For example the Iberian Penisula was all about ZX Spectrum variants and Amiga / PC.
Very seldom you would bump into someone using any of the other 8 or 16 bit home systems.
It is interesting how biggest flamewars are always between groups of people that are most in common and exclude rest of general public.