In terms of services the government provides, overall quality of life, etc, I'm not sure how much/if the US is ahead of, say, Botswana. I know that we're basically the wealthiest of the unhealthy (excluding tiny oil states like Bahrain), and it wouldn't shock me if you could describe the US as the wealthiest country in the world with a third world standard of living, especially as the lines between first and third world get blurry.

I don't have the data or time offhand, but if you're interested, have a look at ourworldindata.org; they probably have many relevant things.