I was recently looking for a cut that I knew I had on at least 3 CDs. They sounded completely different from each other. One was a US issue and the others on later Brit collections.
I have been saying that CD releases of the same album sound different and most people disagree. First of all, you must have a system that is revealing enough to hear these differences.
I own US, German 1st and late pressings, and Japanese CDs. I am talking about original flat masters, the first generation from the 1980’s.
When comparing SQ, there is no steadfast rule as to which will sound the best. Very often a German pressing will sound best, sometimes the US will stand out.