If everybody followed the example of the American constitution, the world would be a better place. Given most other countries' track records, I don't know why the US is held in such contempt. If it weren't for them, Europe would be under either Nazi or Soviet tyranny today, or some grotesque combination of the two. I believe that while they are by no means perfect, we should be thanking them and encouraging others in the world to follow their example (freedom and democracy).
While I agree that George Bush was cack-handed, arrogant and ignorant, people hated him so much that they forgot about the actual people in the world who are making it such an awful place for others, by butchering them for insane or petty crimes such as being gay, or locking them up for holding an opinion. Are these dictators infantile, not warranting as much personal responsibility?
tl;dr if you hate America, I can't imagine how much disgust you must feel for the majority of the countries in the world. Either that, or you have been indoctrinated with anti-American bigotry.
Edit; ffs, stop down-voting. The poll should only appear biased if you already view America as somehow "different" to the rest, because given its behaviour, and the behaviour of other countries, you would have to be a bigot to prefer the other countries in almost all cases. That is as close to an objective analysis as I can give.