Mondo's the original (or at least an original, there's probably been a ton of different releases), while MGM and Kino (Lorber) are two different 4K (re)masters
edit: I found an article on this. I guess the KIno Lorber one is a modification of the MGM one, rather than a whole new remaster
to be clear we're complaining about the '4k master'? the word 'master' makes me think that's the original... but it isn't? is Mondo or Kino closer?
Mondo's the original (or at least an original, there's probably been a ton of different releases), while MGM and Kino (Lorber) are two different 4K (re)masters
edit: I found an article on this. I guess the KIno Lorber one is a modification of the MGM one, rather than a whole new remaster