All four places suck, but if hard pressed, I'd go with Brazil, specifically southern Brazil
China - you run the risk of getting suddenly locked down if a higher than normal case of the sniffles appears in whatever city you're living in; people have been locked down and imprisoned at their workplaces and lately, kids are being separated from their parents And I don't think I would hold myself together if I come across a dog or cat strung up in a butcher shop. Their work culture fucking sucks, too, with their fucking 9-9-6 and having to make up the time if you didn't work because it was holiday (yes, that happens)
India - too chaotic and crazy, and I can't really deal with sneaky Indians
South Africa - too many murderous niggers
Brazil's crime rate is high, but not as horrific as South Africa. Brazil also has the best looking foids out of the four. And Southern Brazil is very European-like, relatively nigger free, and safer than the rest of the country