The Mondo transfer uses the same 4K master but it’s unfaithful to the original prints and looks too purple, the MGM BD from 2014 tries but fails to replicate the original theatrical color timing (which was extremely yellow) and instead looks more brownish than anything, Kino’s dials back the yellow but as a result what looks like a blue tint covers a lot of the picture and affects the black levels

Between these three though I’d say the Kino one is the best since it also has the original mono track and something at least close to the theatrical version