I see you’re looking for a specific country to replace ours immediately, yet I don’t think one could give you the answer. However, I believe the main point of this is bigger. A vacuum left in leadership or respect in the financial international market/system, which the US use to command, will yield a smaller piece of the existing financial pie. Also, pressures from China, Russia, and other OPEC members or countries to find a better international valuation currency could shift things even faster in our fall from grace. Our country has less leverage in negotiations since we’re full of debt, credit rating agencies are worthless, banks are in the situation we know, recession is immenent, and the system as a whole is questionable.
I guess the PERCEPTION and the FREE MARKET concept that is founded on TRUST or the lack thereof is the bigger point here.