Originally posted by Tavenier
I don't think a balance of power of two is 'better'. Look at today. One of the two collapsed and only one is left. There is no balance these days. I am glad it was the USSR that collapsed and not the USA, but still things could have been better with more powers to balance.
China and Europe will (probably) even the balance a bit in the future.
With more powers in a BOP the balance will not easily turn to one side. Others would team up (military, economically and/or politically) to even the balance again.