Good question.

The most correct answer is that I come from New Zealand. I was born there; I spent my entire childhood and adolescence there. I consider my self to be a New Zealander, a "Kiwi".

But... Most of my adult life has been spent in a lot of other countries. So much so, that I now consider myself to be more a child of the world (or at least the western world) than of any one country specifically.

In any case, New Zealand is a nice place and I doubt that I would ever consider becoming a citizen of anywhere else. If you ever get the chance to visit, do so. It is very pretty - especially the South Island.