I use dBPowerAMP, foobar2k, flac, mp3, a Sansa Clip and Clip Zip, and a player where the only option is to browse folders+files.
I'm trying to get everything organised to work well on all these things. I've pulled out some things that need to be separate so they're easy to find or ignore (e.g. Christmas albums, Children's music, Audiobooks), and I'm listing classical by composer (bodged into the artist tags so I can see that info on everything) but I'm intending to list everything else by album artist, with a _compilations folder at the top of that list (compilation=1 and/or albumartist=Various Artists gets something put into that folder). Within the compilations folder, everything is ordered by album title.
The "problem" is that there are a lot of albums in the compilations folder! It's like it needs sub-folders, e.g. "/Now That's What I Call Music! Albums". I'm almost tempted to put albumartist=Now Albums, or albumartist=Various Artists - Now Albums, but I'm guessing that would break a lot of players and they'd no longer realise it was a compilation just from the compilation=1 flag.
I've searched around and seen various tagging examples for multi-artist Various Artist albums, but haven't found a discussion of how to segment Various Artist albums when there are too many of them. I know some people use Genres, but I don't want to. There are always corner cases meaning I wouldn't know where something was filed.
What do other people do?