Just like to share 3 famous Music Streaming service. I am not audiophile but I love music and sensitive to sound quality.

Below is the highest setting applicable and all songs is test by using Powerbeats 3 headset.
Test on iPhone 7 Plus and all without enable equalizer. Few types of music and same song listen in 3 apps

• Tidal - 1411kbps FLAC (lossless)
  
• Spotify - 320kbps Ogg (lossy)
  
• Apple Music - 256kbps AAC (lossy)
  

Sound Quality - Winner Tidal, 2nd Apple Music, 3rd Spotify.
Tidal is unbeatable the best sound quality, it is CD audio quality because it is lossless.

Spotify even though is 320kbps but Ogg format is still far behind AAC, the vocal is softer, bass is less strong and sometimes still can heard artificial noise & sound fuzzy. Obvious never my favorite at all. I don't like how Ogg sound output. It is also the most far different when compare with Tidal 1411kbps FLAC.

Apple Music is kind of near to Tidal 1411kbps FLAC, thanks to Apple better format provide, even though it is only 256kbps but it is far better than Spotify 320kbps, strong vocal and strong bass. Hardly to heard any artificial noise.

Music Catalogs - Winner Apple Music, 2nd Spotify, 3rd Tidal.
If you are only english song or europe song listener, Tidal is match with any of the music streaming provider. But if you listen to anykind of songs especially Asian song, then Tidal is very far behind, most of Chinese or Malay songs is not available in Tidar.

Interface - Winner Apple Music, 2nd Tidal, 3rd Spotify
Sorry to said I very dislike the Spotify interace, it is very troublesome to search and access offline download music.

Price Value - Winner Apple Music, 2nd Spotify, 3rd Tidal.
Even though all 3 can be same subscription price of RM 14.90 but Apple Music having more music catalogs and better sound quality, this is the reason of why it beat down Spotify. As for Tidal in same price range you only get 320kbps AAC instead of lossless. They is no reason for subscribing Tidal standard as the catalogs is much less. Use Tidal the main reason is go for FLAC lossless but that is much expensive than others, it cost RM 29.80 monthly. Some will said Spotify have free version but the free version only up to 160kbps Ogg which to me is very bad sound quality where I won't listen, also it came with full of advertisement that I can't tolerant.

Cross Platform - All equally tie
All 3 music streaming is cross platform of PC Windows, Mobile Android & Mobile iOS. All support offline download. In this category, all equally tie.
I not include Google Play Music, Amazon Prime Music, Napster & Pandora because it is not available in Malaysia.
As for Deezer the lossless FLAC need Sonos System where I don't have.