Well, you can get any result you want by deciding on the right measure.

Want the US to beat the EU? Measure quality of life by the number of square feet of living space, hours of native-language cultural output available per year, percentage of the population with air conditioning, cost of a gallon of gas, and number of billionaires.

Want the EU to beat the US? Measure quality of life by % of people without healthcare, days of annual leave per year, and rates of bankruptcy.

Well yes, but that doesn’t make them equally valid. One of those sets of measures looks significantly better than the other (which I would guess is your point).