I'm actually in the same boat with the comparisons between the two services. I've had Amazon Music HD for awhile now and really enjoy it. However, when I purchased my new Bluesound Node (the newest version) last month, I was given a 60-day free trial of Qobuz. So, I'm in the early stages of doing A - B testing between the two.
If I had to choose RIGHT NOW, I'd probably go with Qobuz and pay the extra. However, on my junior league system -- it's not a slam dunk for Qobuz. Both services sound really good on my set up, however, I do give the edge to Qobuz.
I will try to report back later when the 60-days is up.