There simply is no comparison. Switzerland comes second, with the UK or Canada next.
Europeans always mention free healthcare. But when your salary in the US is triple before taxes then the healthcare costs are irrelevant.
The absolute truth is that by choosing to work in Europe rather than the US, you're losing potentially millions of dollars by time you reach retirement (with compounding interest investments) -- as an average individual contributor. If you're a high performer, you might lose far more than that.
Entry level grads in the US can in some cases be paid more than senior developers in the EU.