Here are my reasons. Feel free to contribute.
1: We're number 1 in most sports; baseball, basketball, football, soccer, running*other Olympic types of sport*.
That depends on which definition of 'Football' you want to use.
In many parts of the world, Football = Rugby, and South Africa currently holds the Rugby World Cup, the USA failed to get past the pool stages.
Soccer (which you have also listed) is also refered to as football (to confuse matters), currently, Spain hold the Football (FIFA) World Cup, and so far the best the USA have done is place 3rd in 1930.
2: We have the best, most influential economy. America has a crisis, the rest of the world has a crisis.
This may or may not be true, certainly here at least our markets are more strongly tied to the Asian markets, and recently the NZ Dollar has reached post float highs against the US.
3: We have the most rights/freedom.
No. There are a number of countries in the world, including New Zealand, that rank higher than the US in personal freedom, freedom of the press, economic freedom, civil liberties, and so on and so forth.
4: Our government is proven to be the most caring for its people.
And yet you can't even get universal healthcare.
5: We have the best music. The Beatles, Jimi Hendrix, SlipKnot, Queen, The Rolling Stones, Lil Wayne*And all the other best rap/r&m artists*, Michael Jackson, etc.
As has been pointed out, several artists on that list are not American, and personally I'd rate Crowded House, The Headless Chickens, Supergroove, and Neil & Tim Finn well above Slipknot.
6: Most powerful/successful army in history.
I lack a verifiable source, for the moment, however the RNZAF successfully defeated a US carrier group in a joint exercise. My recollection is that it would have been at least thirty years ago, because the US stormed off in a hissy fit and suspended their ANZUS obligations to NZ when the NZ government - following the will of the people, as should happen in a democracy, told the US that it did not want ships carrying Nuclear weapons in NZ territorial waters, and requested that they either declare which (if any) were, or remove themselves from our territory, and have maintained this stance inspite of the US bullying us.
This might
actually be true, but I find the assertion questionable, and it lacks supporting evidence.
8: Best movies in the world.
By who's measure?
LOTR was filmed in NZ, by a New Zealander. Dam Busters is being remade in NZ, by the same New Zealander, Willow was made in NZ, as was 'The Silent Earth'.
9: Best scientists/ most modern inventions and breakthroughs.
Albert Einstein was (at best) a German Immigrant, and only settled in the US (gaining residency in 1940) at the age of 54 in 1933 during a visit.
Here's two other names for you to google:
Richard Pearse.
Ernest Rutherford.