I've been using Spotify (I like their Release Radar and Weekly playlist functions and a handful of Playlist groups) and I just gave Amazon a try and the sound quality certainly is better at Amazon.  Don't know about the others, though...

And the story keeps growing.....Spotify has just added labels and others seem to be joining this battle.  I think Spotify is one or two very large artists away from making some serious concessions on this battle (come on Dylan and Springsteen)....

And I'm not about kicking people like Rogan off a platform but instead, there has to be responsibility when it comes to people spreading harmful misinformation like he has been doing.