Significant Other would be a pretty easy push for me, although it depends on the country. Western Europe / Iceland / Canada would be a very easy sell, 3rd world country / China / Russia would be a very tough sell. I'd say the easiest places for a SO to convince me to move right now is Canada, Iceland, Norway and Sweden.
Interesting opinion on China. I'd understand if you don't want to live under the CCP and the Great Firewall (or the clouds of smog for that matter), and gaining citizenship as a non-Chinese person is extremely hard (harder than Japan even), but so long as the economy keeps growing I think it's in a way different league from Russia (authoritarian minus the economic growth) or most of the "third world." And it's seriously a beautiful country, with many natural and man-made wonders. If I had to move, China would definitely be on my list. But I do have the advantage of being Chinese and knowing (some of) the language, so again, China isn't for everyone.
On the flip side, while Western Europe, especially Scandinavia, is appealing with the social safety net and all, the racism there does make me apprehensive. There's been conflicts against Chinese people in France and Italy, for example. If I had to move to Western Europe, the UK, Germany, and the Nordic countries would be my top choices.
And for the same reason, it'll be a hard sell to get me to move to Eastern Europe, as they have most of the disadvantages of Western Europe (even more xenophobia, namely) without any of the advantages.
At least Iceland is a
very beautiful country, but I don't know how restrictive their immigration policy would be.
As such, my list would probably put Canada first (diverse population with lots of Asians, extensive social safety net, strong economy), then China. After that, I don't know. I already addressed Western Europe, and New Zealand sounds fun (Australia has a bad reputation of racism, which puts it lower on my list). I'd love to go to (South) Korea thanks to their amazing culture, but there's the language barrier and the fact that it's difficult to get a non-teaching job there as a foreigner, so realistically that's an out-there possibility.
So I'd move for the basic reasons: economic opportunities or if I'm forced to go as a refugee. (If Trump and his ilk stay in power, the latter may be a real possibility). As for the SO idea, I think it'll be easier for me to bring
her to America and sponsor her for citizenship (though again, if Trump wishes to make it exponentially harder, especially for myself, who's a product of "chain migration," I may as well jump ship).