This is probably the thing that has bugged me the most after switching over after having used linux for half a decade. I can't seem to find a decent music player for windows.
And I'm being absolutely serious.
What I'm mostly looking for is a player that automatically shows suggestions based on the last.fm database, and is able to create dynamic playlists. - Which means that the player is looking for songs that are similar to what I'm listening to, looks if I have them in my library and automatically cues them after my current playlist runs out.
Automatic fetching of album covers is a plus.
Automatic lyrics and wikipedia information fetching is a plus.
But even just a player where you have some sort of filtering capability on one side and a playlist always in plain view on the other seems too much to ask - this is what bugs me the most about itunes and songbird. Or something as simple as having it remove played tracks from the playlist. Or that it lets you drag and drop a whole album within a playlist.
This is how I think it should be done imo: https://www.listen-project.org/screenshots/
What I use right now is an early early alpha build of amarok for windows. It works, but it isn't optimal.