Are you sure about that? I remember reading an interview with a Cadburys rep in Dunedin and he said that, compared to the UK version, the NZ Cadburys contained significantly more fat, more sugar and less cocoa solids - resulting in that (to my taste) overly sweet, sticky and not-very-chocolate flavour that reminds me of cooking chocolate. But then my preferred choc treat is Lindt 75% cocoa - hard core!! I think most good European chocolate producers would freak if you told them their products were remotely like NZ cadburys! But I could be wrong.
The sweet tastes of the NZ consumer spills over into lots of things - salad dressings, ham and bacon, mayo and tom sauce - I find all these too sweet. Even a lot of the biscuits and crumbles etc lack a salty, savoury edge to offset the sweetness.
Between Belgian,German and Swiss chocolate is a big different.
I still love the Swiss made chololate which is more creamy and smooth. yamm.