Who can compete with China's population? India? afaik India is like a joke in Chinese's social media even though I dont really agree with them. But statistically India start approximately the point as China right after WWII but their growth is just 1/5 of China......
I am actually pretty intrigued with Indonesia's situation. The next generation's economic miracle in my point of view should come from the SE Asia with Vietnam, Indonesia and India being strong candidates. But I am not an expert of economics.