Why don't we make a list of best pressings ?


I didn't compare many but here are a few. When I say Japanese original I mean Japanese first release, same mastering as the original in the country where it was recorded. In descending order.
A. Miles Davis - Bitches Brew
1. Japanese original promo stereo
2 -3. Japanese original stereo
2 -3. US original 360 sound.
US and Japanese sound slightly different, I listen to both.
B. Miles Davis - Pangaea
1. Japanese original promo
2. Japanese original
C. Mahavishnu Orchestra - The Inner Mounting Flame
1. Japanese original.
2. Canadian original 360 sound.
 D.Mahavishnu Orchestra - Birds of Fire
1. Japanese original promo
2. Japanese original
E. Mahavishnu Orchestra - Visions Of The Emerald Beyond
1. US original White Label Promo.
F. Al Di Meola - Cielo e Terra
1. Japanese original promo
2. Japanese original

I have or had other pressings of all these albums, they are worse to various degree. Canadian original 360 Sound  Bitches Brew also sounds good but I preferred the US and Japanese. Japanese first release of the "Visions..' by Mahavishnu Orchestra is something that I don't like. This is rare in my experience when it comes to records from 70s.




inna
The best Miles Davis Kind of Blue are the original 6 eye mono and stereo.  
many Japanese LP's sound thin and over processed to me
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Mental, which sites list this type of info? I'm interested 
Not sure exactly what info you are interested in. You might try discord.com. They have a pretty decent database.