✔ 最佳答案
[*Significantly* edited since first post]
I have to say South Korea, even though I'm Chinese (from Taiwan & Hong Kong).
1. Why not China?
It's NOT because of China's government, economy, or living conditions (cities like Shanghai and Guangzhou are comparable to any in South Korea)... but the people. Mainland Chinese people just came out of poverty one or two decades ago, so even if some of them are quite well-off these days, they still often lack proper hygiene and manners.
Also, the Mainland Chinese culture is too money-oriented, with no room for creativity or even elegance; sometimes, it seems like every squre inch of the country (and Chinese websites) is covered with poorly-designed, aesthetically-lacking advertisements. Mainland Chinese people of working age are just too busy making money to care about things like art, design, music and technological innovation. This may be about to change though: younger Chinese people, especially university students, have much better taste and much more creativity than their parents who were brought up during the Cultural Revolution.
Finally, health care in Mainland China is somewhat unreliable and Chinese hospitals are not up to the hygienic standards that people in other developed countries have come to expect.
Well, hopefully things will change in a decade or two. Most Mainland Chinese of MY age whom I have met are very nice, polite and creative. Another thing I've noticed is that young Mainland Chinese people are receptive to Japanese and Korean influences whilst older people in China hate Japan with a passion. So as soon as the "Cultural Revolution generation" retires, things will start looking brighter... the new Chinese generation will be more civilised, cultured and open to learning from the more positive aspects of Korea and Japan.
2. Why South Korea?
Haha, my reasons in favour of South Korea are more trivial. It's a place I've always wanted to visit... I love Korean culture and I think that - ironically - they've done a far better job maintaining Traditional Chinese culture (i.e. Confucian practices, rituals and etiquette) than China itself.
Like China, Korea has developed at an enormous pace over the past few decades but it has also managed to develop its creativity alongside its economy. South Korea just seems to be much more "alive" and "real" than China, which is all about money and trying to impress foreigners.