Earlier quoted context omitted.
I can't believe the dominant country is running this timeline.
It already no longer is.
In terms of military prowess the US is superior, if you believe their advertised weapons capabilities. That being said, if we believed what countries said about their own weapons, then Russia has a number of world ending superweapons - clearly they're the leader here /s.
If you believe total number of naval vessels determines might, the Chinese Navy's numbers make them superior. If you believe damage control and logistics determine naval might, the USA has one of the most sophisticated support fleets in the world with world class damage control (combat survivability - but this is a meme).
If you believe technological development makes a nation superior, the USA maintains it's edge with trade allies South Korea and Taiwan.
If you believe total production is what makes a nation superior... China.
Look, you get what I'm saying. The dollar is still the primary reserve currency (for now) and the US still ensures safety in international waters while projecting power regularly.