Since someone brought up politics... I have to stick my nose in this quagmire.... I for one, and tired of the USA occupying every country just to keep peace... I mean, why must we police the world? It seems rather silly for any country to do that....
As for what country rules??? I think if you look at the immigration statistics, that would tell you what country is the most popular... But as far as "ruling" goes??? We may talk big here in the USA, but I still think that China, Russia or some other country is probably bigger than the USA and they are just sitting in the shadows not letting the world know it.... Kind of like a coiled snake hiding in the shadows waiting for the right moment to strike.