[ Other - Destinations ] Open Question : What countries are the easiest for someone from the US to expatriate to?

If things continue to get worse economically in the U.S., and one has the means to move out, what nations would be the easiest to emigrate to? Some criteria I could think of would be nations that are welcoming to immigrants, might have similar cultures, and would be easier to assimilate in than others. I'd be interested to know what nations you might think could fit that description.