As regards which country is ''better'', now, in the terms I named -- that the gov't simply follows its OWN rules, and ''allows'' the citizen to be left alone to a greater extent -- I would say (Scots-American that I am, so you may find this odd) that Ireland USED to be (the Creative Works Act of 1974 is what led to their being the computer capital of Europe, btw), and is still to some degree, although its unfortunate ratification of Maastricht makes me FAR too suspicious to live there. Ah, so where else?
An objective person will consider Iceland. Inhospitable climate, but absolutely marvelous people, and they put up with NO kwap from their gov't. Very much to be admired, and very independent folks. Equally, if one wanted to go through the process of gaining what used to be called a ''crown exemption'' (I can look up the current phrase if you like), the Balaeric Islands are worth a look -- cost of living is far too high, just like the Caymans, but still worth a look.
10 years ago, I would have said Costa Rica was a definite. Still is, except that -- courtesy of indifference on the part of the US -- Marxism is spreading like wildfire through Latin America. Chavez, Lula, the new clown in Peru, the Colombian narcoterrorists who control that nation...not for me. It'll spread northward, too, just wait.
Singapore is very interesting -- sure, they'll bust your ass if you leave a piece of gum on the sidewalk...but I don't chew gum. Capitalists down to the nth degree, the gov't leaves you alone as long as you do something productive (and, hence, pay taxes).
There are several other possibilities, couple of slots in the West Indies, and Turks and Caicos Islands for one specific. Just a rockpile, but some lovely scenery, and the weather's decent, the gov't is benign, and modern communications are very available.
As they say -- investigate BEFORE you invest...or move.
It isn't " just " which governemnt is more strick about keeping true to their Constitution; no, rather it also is about just WHAT is actually therein. Then, there is also the fact that most other places, depending upon one's wants, needs, and proclivities, aren't nearly as hospitable, to most Americans, as is the USA.
Would I ever leave ? Maybe. Is there someplace else, where I could find what, at the minimum, I KNOW that I need ? Doubtful. You haven't mentioned a place, where I and mine would go...for various and sundry good reasons.
Oh, and by-the-by...you harped on the fact that South America is turning into/has turned into a Marxist slum, implying that OUR governemnt should have been doing something, long ago, about that. That is NOT exactly all that CONSTITUTIONAL. LOL
Is it only when YOUR wants/positions aren't being met 100%, that you think that the governemnt has the absolute RIGHT to interfer? And yes, I know all about the Monroe Doctorine and all that THAT implies. :-)