My sister and I talk about that one a lot, too! I don't know that I want to live in the USA for the rest of my life - especially with the way things look to be shaping up.
Some possibilities are Malaysia - or our own island in Indonesia!
We like Singapore a lot, honestly. But then that isn't remote, it's urban. In Malaysia you can live out in the tropical jungle somewhere. And the Muslims there are very peaceful/conservative. And they speak English in Singapore/Malaysia.
I heard New Zealand is nice but I wouldn't want to live there.
South/Central America seems too conflict-ridden and/or unsanitary, but I don't know a lot about that, could be wrong.
Europe is gorgeous but there is that whole European Union thing, and high expense of living.