Spotify
I have used Google/Youtube music, Apple, Tidal, Deezer, Joox, and probably everything I could get my hands on.
At first, it was all about Hi-Fi quality, not wanting to miss out on the good bits, you know? When Apple launched their Hi-Fi streaming capability last year I was one of the first people on the bandwagon and was amazed at how good everything suddenly sounded,
Then I realised the album I was listening to wasn't available in Hi-Fi...
So I cannot distinguish the difference, therefore I do not benefit from Hi-Fi, therefore Spotify is king because of the amazing recommendations and library. I listen to my discover weekly every single week and I always find a new banger or two.
And for the people saying you can definitely hear a difference, sure, Hi-Fi no doubt has more "data" being pumped out, but try distinguishing when you don't know which quality you're listening to.
At the end of the day, the music you like is more important than the quality it is playing in, and Spotify has everything I like!