Since 1945, I'd take Europe over us.
Generally speaking the Scandinavian countries especially have the highest standard of living, and the most robust economies (measured by unemployment and GDP growth), and they're not tied to the big big mistake of the Euro-Zone, "the Euro" which if the Greek voters have any sense they will jettison.
The Greeks and Italians are the reason that Soros' pet American-dollar-destroyer Euro is going down the pooper.
The Euro was designed to deliberately destabilize the global economic hegemony of the dollar. It was intended to create small waves in an otherwise stagnant currency exchange economy (where Soros makes his money), and he banked on the predictability of that trend.
The suckers that run the European governments that became the EU effed up by including socialist hemorrhoids like Italy and Greece in the communal pool. Not that France is much better, but at least the people there work 32 hours a week before dining on government cheese.
I'm looking eagerly forward to the demise of the Euro, and the EU. 10 years, tops. It was manufactured. Soros made his money. Now he's done, and moved on to swapping between RMB (Ren Min Bi, Chinese Yuan), USD and AED (United Arab Emirates Dirhams). That's the new currency game, and how you make money without doing any actual work.