"Quality" is being measured on more than one metric. Cost is one, speed of delivery is another, quality of services yet another. Any overall "best" ranking is going to need to weigh those and other customer satisfaction factors in combination and no single way of ranking the factors will cover every person's wants and needs.
In this discussion, it's obvious Eskimospy is ranking 'accessibility to care' for all as one of his key metrics if not the key metric. SP33d is obviously talking about speed of delivery and the ability to received premium care for those who can afford it. Neither is "wrong" and how to rank those factors is what the whole Obamacare/single payer/free market debate is about.
This is very true and luckily I highly doubt we will ever see the US go to a complete and total single payer model like most countries we are trying to compare to. You will have your basic .gov "insurance" and if you so choose you can purchase higher quality "add on" or Cadillac plans from private insurers. Those with money will always get better coverage but everyone will get the basics.
Personally I think the above is a good idea in general but we would get something like that regardless. The rich have way to much influence and they aren't going to settle with getting the exact same medical service as the plebes.