What can we do to organize our music?

I've got over 20k items on my iTunes Library, at least 5k with ratings and play counts, apparently just 12k music files and I can't understand how this question have not been properly answered yet. Maybe there is no answer.

I have too many duplicates, broken links, bad music, corrupted files... Well, a big mess with no tags!

Probably there's no single software capable of just organizing everything, though I'd love one. Hopefully some time in the near future we all will be able to just sync the cloud of our automagically selected music to the newly created offline copy. But meanwhile...

Please, do consider I've at least gave a shot (even while not a full test drive) to every single answer linked here already, plus a few more. I'm fine with using other software (mac too, please) to organize, but I'd need it to sync (retrieve and put back) at least iTunes ratings, because of iPhone and smart playlists. Not looking for iTunes replacement.

I'm hoping to hear what you hardcore music organizers out there are using as your own solutions! :)

I myself am using way too many tools, getting way too little done and end up going song by song.