I know lots of people have their favorite versions of various albums, but is there a resource that tracks the versions and comments on what changes have been made?
I don’t think there’s a simple way to find the best versions of particular albums. No list of the best anywhere. If you want to read discussions of what is the best version of a CD or LP, check out the Steve Hoffman Music Forums. Steve is a mastering engineer, so you can find discussions of what that means too.
https://forums.stevehoffman.tv/forums/music-corner.2/
You’ll find all kinds of music discussions there and people who give new meaning to the word obsessed. The discussions about albums you’re interested in may have taken place years ago, so you’ll have to get good at searching the forum. They also have classified ad forums, so you may be able to buy some of the better versions there.
https://forums.stevehoffman.tv/
If you want to find which CD or LP releases are more compressed or which have greater dynamic range (less compressed), check out the dynamic range database.
http://dr.loudness-war.info/
Take a look at those sites and if you have any questions, let us know.