NEW YORK (Reuters Life!) - The United States is the most admired country globally thanks largely to the star power of President Barack Obama and his administration, according to a new poll. It climbed from seventh place last year, ahead of France, Germany, the United Kingdom and Japan which completed the top five nations in the Nation Brand Index (NBI). "What's really remarkable is that in all my years studying national reputation, I have never seen any country experience such a dramatic change in its standing as we see for the United States for 2009," said Simon Anholt, the founder...