I think that Google Play is a little bit better than Spotify at finding related music I also like. Spotify's related bands list was a little better than Google

I think that Google Play is a little bit better than Spotify at finding related music I also like. Spotify's related bands list was a little better than Google's, but Google's radio-style playlists that you can create off of a song, a playlist, or just "I'm feeling lucky" are awesome almost every time. I used Spotify for longer but I feel like I'm getting a lot more value out of Google Play. Obviously there's a lot of personal preference here. Add in that Google has a TON of info on me, way more than Spotify could ever have, and it's almost not a fair comparison. I should mention that I left Spotify because they have a 10,000-songs limit on how many songs you can save, even with a paid account, and that was absolutely absurd to me- IIRC, Google lets you actually upload more tracks than Spotify would let you save.