Heavily depends on money available / crime level tolerance - albeit crime level in the US is pretty crazy.
Europe is deteriorating incredibly rapidly in terms of crime (due to a combination of economic poverty and uncontrolled immigration from third world countries) - but I think some of the low tax EU countries (Malta, Cyprus, Gibraltar, etc) are a good bet for a few more years.
My top choice if I had family (or friends I want to be close with) in the US would be Cayman.
I think long term, either South America drops the level of crime considerably and becomes the new place to be or China start building futuristic cities attracting wealthy western talent to offset their declining population rate.
Europe is deteriorating incredibly rapidly in terms of crime (due to a combination of economic poverty and uncontrolled immigration from third world countries) - but I think some of the low tax EU countries (Malta, Cyprus, Gibraltar, etc) are a good bet for a few more years.
My top choice if I had family (or friends I want to be close with) in the US would be Cayman.
I think long term, either South America drops the level of crime considerably and becomes the new place to be or China start building futuristic cities attracting wealthy western talent to offset their declining population rate.