I've been using Zune player for the longest time but I'd like to try something different. The big things I'm looking for are: -Proper sorting by artist with song name, artist, and album all correctly read from the metadata -Windows toolbar widget (easy play/pause) -Light enough to open fairly quickly -Nice interface
Give AIMP a try. I'm using it for a long time. It's simple and lighweight. The looks are also changeable with the skins support. Here's the list of features: http://www.aimp.ru/index.php?do=features
Pono because Neil says it rules ok. An old man who have spend most of his life in front of a loud PA is probably a good judge of what constitutes great sound.
I'd personally recommend Clementine player, it's a lightweight music player. It also has a phone remote app, so that could definitely be a plus. The only problem with it is that it is lacking in the looks department, but it can be fixed.