The Holy Bible 20th Anniversary has both the UK and US mix of the album
The US mix apparently was scheduled to be release when the MSP were planning to tour the US but was aborted when Richey Edwards went missing and the mix was never release in the US as planned.
The US Mix was only available via the rare Canada release until the 10th and now 20th anniversary rerelease of The Holy Bible.
UK mix is more raw and emphasise the punk garage roots
The US mix is significantly more polish with more reverb, more separation between the instruments. It has the polish of something like Nirvana's Nevermind
MSP themselves prefer the US mix. I probably slightly prefer it as well but I can see how someone who would find the rougher mix preferential