The way it's being used here, to say the NHS is wonderful, doesn't work very well in my opinion.
1. Extremely long lines in small rooms, so people cram together to get a better chance of coughing on each other.
2. For any illness doctors listen to you and prescribe exactly three drugs: antibiotic, pain reducer, and "something for stomach". For any symptoms.
3. There is no "sick leave" thing, so if you're sick -- you are absent.
4. Because of #3, people always come to work being acutely sick (so if it's flu, they cough on each other, obviously).
Although labor traditions are the horror story of its own, no one worked there recommens to ever do that (just youtube for "working in japan").
But I'm not sure it would be helpful. Instead maybe the WHO World Health Care report ranking is a useful datapoint?