First of all, Singapore is going to be over-run by Indonesians and Malaysians... What do think? Jim Rogers and his Mandarin-speaking daughters are going to prevent the hoards of hatchet-wielding Indonesians from pouring in?
The question isn't where you're going to go... the question is what is your clan affiliation. I wouldn't move to another country where I have no historical ties and no family contacts... that would just make me a plump, stupid, solitary American who can be fleeced.
I'd rather just use the fuel I can gather to move myself, my extended family (including cousins, aunts + uncles), and some trusted (and useful) long-term friends to some rural crap-hole farming town 6 to 8 hours north of New York City.
I would either grab some defensible land, or I would buy it/lease it with some physical gold that I squirreled away. I figure if I grab some New York State land, and the government has melted away, then it's my land so long as I can defend it.
The Winters are going to be cold and long, but a dozen generations back, Native Americans and settlers survived up there with less legacy technology, less education, and less life-long immunizations.
After about 6 months of anarchy, I would expect some Brooklyn and Bronx mofos to make they way up north in search of my preserves, my venison jerky, and my dried fruit. But, by then, they will be hungry and weak, and will be more like zombies (the walking dead) than like me and my kin-folk, so we will just kill those Long Island a-holes and use their corpses as fertilizer for the Spring planting season.