I second MusicBee, it's an awesome app with endless customization, lots of plugins and the only thing that's come close to the Linux software Guayadeque that I use.
I know that's a weird thing to say from someone who provides a website for free to a huge community, but it's not like we don't have costs. We're just not forwarding them to our users.
We analyze favorite bands, album collections, ratings and try to find users with similar tastes. The number on the right is the 'similarity rating' - hover the mouse for explanation.
Download
Download album collection in CSV (for Excel or OpenOffice) or TXT format (simple list). The output will take into account your current selection and sorting order.