I've lived in a few different parts of the EU, and couldn't imagine a worse idea than starting a company there (which I did, once). Starting is hard enough without the general negative attitudes, the government insanities, the insane taxes, the low work ethic, the 8 weeks of vacation every month (I exaggerate, slightly). And I was in one of the two best EU countries, God only knows how bad it is in Spain or Italy or…
On the other hand the people in EU are happier, have better social protection, better benefits, better health systems, better consumer protection, better application of rules and laws, they make for more productive employees. Do the shareholders get as rich as fast as in the hyperactive US economy? Not, but the society functions better. I very much prefer the EU.
Rule of law and happier are debatable.
Productivity seems false if you define productivity as economic output versus just a redefinition of self-rated relaxation on the job.
At a certain point it gets incredibly subjective like which country's citizens are more awesome.
And honestly good on you for being in the EU and liking the EU more. I'm sure a lot of people in the USA feel the same about the USA. The entire point of democracies is that people should change their government to their liking.