Well, in the case of Rdio vs Spotify, Rdio is way better, UI-wise. But that has nothing to do with our 15-y-o — she grew up with Rdio and it's the only streami

Well, in the case of Rdio vs Spotify, Rdio is way better, UI-wise. But that has nothing to do with our 15-y-o — she grew up with Rdio and it's the only streaming music service she's ever known.