Hmm, I think that we probably don't know the sort of people who would consider their countries the best in the world, but I have a feeling that there's a larger percentage of those in the US (think Bible belt) than in Europe. I imagine that this is localized, though, as there are people in Greece who are all Golden-Dawn fascist-patriots too. They're seen as uneducated caricatures, which I imagine is how their American counterparts are also seen there.