Too limited a choice range.
Yes, the U.S. WAS the greatest country on the planet.
Yes, the U.S. could still be the greatest country on the planet.
Is the U.S. in the leading role of all nations on the planet what the corporations really want?
No, it is not what they want. The corporations want all countries to be third world countries, hence, there will be NO greatest country on the planet anymore. There will be, however, the ruling class and the slave class... and that's a lot closer than you'd think.