I want to be the United States because right now, it's a country with myriad problems and I can fix most of them or all of them. Poverty, high cost of Health care, Long Term energy insecurity, poor public health, a damaged educational system, and high cost of higher education are the top domestic problems facing the US today. In term of foreign affairs, terrorism, the increasing sociopolitical influence of China and Russia, and the proliferation of nuclear weapons to untrusted states are the most potent threats the US faces in 2014 and will continue facing in the near future.
Second choice: America fuck yeah