Is asking about the relative merits of various releases for main or meta? or both? or Neither?
It's certainly not Meta. Meta is really just for things about Ask Ubuntu, the site and its community.
Whether it's really answerable in a sense that we'd welcome on the main site, it's probably either a bit too broad (a changelogs for all the packages are available). If you could limit the scope of the question to something that is a bit more atomic, you might have an answerable question.
If you updated your question here to include an example of the question you'd be considering asking, I can update my answer to offer further guidance.