streaming source

No clear winner. As tvad said, get a trial of each and decide for yourself. I’ll leave the whole MQA argument to the others.

^^^what @tvad said. 

My short and sweet description (or opinion if you wish) of Tidal vs Qobuz rests on a couple of things.

Tidal seems to be focused on a younger audience. Think hip-hop, pop, rap, etc. It's owned by Jay-Z. Qobuz seems to appeal to a more mature (OK older) audience, with an emphasis on classical, jazz, classic rock, etc.

Their catalogs overlap a lot, although I think Tidal has an overall larger selection.

Tidal uses MQA for "hi-res" files, which requires special software AND hardware to do the full "unfold" of the file (this they MQA capable DACs). Qobuz on the other hand simply provides a lot of high resolution files (mostly 24/96 to 24/192) that play through any DAC capable of playing hi-res files, which most can.

I keep Tidal because sometimes there are things that I want to listen to that aren't available on Qobuz, but that seems to happen less and less. If I was forced to only keep one, it would be Qobuz for sure.

+1 Big Greg's accurate description. I had used Tidal for several years but switched to Qobuz. I didn't feel like supporting JayZ and resented Tidal's "hi rez" MQA selections that forced you to buy decoding dacs. Qobuz sound quality is just peachy.

Just finishing a month on Amazon HD for free. Not crazy about the interface but some very good sounding stuff. I'm a prime member so it would be $13/month if I subscribe.

That said, I'm ending the trial and will be trying Qobuz next.

Both of these reviews taught me something:
www.youtube.com/watch?v=lzSjm7FsWbM
www.youtube.com/watch?v=Ka7-iJSL4B8

+2, big_greg.  I’ve dropped Tidal last October, don’t miss it at all. There is enough music to explore on Qobuz and SQ is outstanding, especially 24bit/192khz high resolution files. 

I tried Tidal for a few months...  I honestly thought MQA sounded like crap...  The regular HiFi was not so bad...  It is broken small signal SQ...  Tried Qobuz and thought it has superior SQ...  After many months with Qobuz I am very happy with the titles and SQ of all their offerings...

I have both mainly for variety and selection, but if I had to choose only one it would be Qobuz. I generally prefer the sound of Qobuz 
hi-res over Tidal MQA.

After several years with Tidal i tried Qobuz on a free trial and switched to Qobuz for SQ. I used them both with Roon and consider it an essential part of the UI experince.

I would like to complement everyone who has responded to this thread. Usually you have put up with a lot of &%+?*. Audiophiles sharing valid  opinions and experiences is what this forum should be about! 

AMEN!!!!

Another vote for Qobuz.  I started with Tidal last year, but then Qobuz offered a hi-res subscription for $15/mo. that I tried and never went back to Tidal.  As far as I’m concerned, Tidal can keep their MQA.  As a picky audiophile I’m more than happy with the sound quality I’m getting from Qobuz. 

When I finally pulled the trigger and got a DAC/Streamer set-up (complete with MQA), I simultaneously purchased trial memberships with both Tidal and Qobuz.  I figured I'd ditch the service I didn't like as much.  Qobuz not only gave me better signal quality, they offered more classical.  It was actually kind of humorous when I let Tidal know they lost the competition.  I think they cut off my service within 30 seconds.  Bam!  BTW, being a classical lover I also subscribe to Primephonic.  Their service is a hair less idiot-proof than Qobuz (I'm totally ham-handed with anything tech), but their signal quality comes within inches of Qobuz, and their selection of classical music is the proverbial trip to heaven.