after united states, who will be the super power?

It will be China, as they practically own the US already. And their economy will grow stronger and stronger, since practically all of our manufacturing is done over there.

China is a good guess. There is lots about China that we just don't know so they could emerge as the next super power nation. With the meltdown of the Big Bully (U.S.) it would be nice if there was NO super power nation and just let countries do whatever they want to do without any interference. I think the U.S. should become a neutrality

China, they have the largest army, the highest population, and they are becoming advanced very quickly.

I think it will be China. I think they already are a super power. They have the popultion and enough land too. After that I think India will emerge as a super power. They are becoming more advanced every day.

India ofcourse! We have got everything it takes to become a superpower.

China is probably the most suitable candidate to take the place of the us as world superpower. But it has to be said that china's economy is very linked to exports and if the us economy sinks deeper very probably china is going to be hit too. I hope there will be a world with no superpowers, since too much power always corrupts.