I don't think you can single out anywhere as having the best breakfast. It's what you prefer to eat.
I for instance love Asian food but can't eat traditional Asian breakfasts.
I cook breakfast for my children nearly every morning. During the week, it's egg White omelettes with a fried or poached egg on top or Porridge with sultana's and a variety of fruits.
At the weekends it's bacon sandwiches, full English and the best breakfast in the world - eggs Benedict.
Where have I had the best eggs Benedict? Copenhagen. The UK and US have some fine examples too.
So it's all down to personal preference.