Where are you from?
I would recommend Australia. New Zealand's size doesn't allow for much interesting flying, all you have is two options: Will I fly with New Zealand out the left window, or out the right window (it's tiny).
Australia has such a vast about of land to fly around, and thousands of airports and strips, and a wider variety of weather.
Bini's in Melbourne is a good school, depending on where you are from. I don't think they take international students, especially ab initio (hense the name "Advanced Flight Training". They specialise in CPL and MECIR.
There are a variety of different schools that cater for different nationalities. So, where are you from?