Google play Music is the best. You can build ur own library, search for any song and play it also creating a radio station based on a particular type of song. The quality of the songs are great as well. Only thing I use honestly.

Spotify

Spotify(Google Music is a close second to me).

Spotify

Google Play Music. No local files nonsense. I actually agree with their recommendations.

All it needs is a desktop application.

I use Grooveshark mostly, but now I think I'll check out Google Music.

grooveshark tho

Spotify

I'll be the odd one, Slacker Radio. I love the ability to create a radio station of just one artist.

Beats Music

I think I'm the only one that uses Deezer, and I like it. I used to be such a Spotify fan, and now I even have it in my country, but I'm enjoying Deezer, too.

I really liked Rdio for a long time, but Spotify has better free features. If I paid for one it would be Rdio though.