Auckland has been judged the world’s third-best city for quality of living in Mercer’s Quality of Living survey. This is the fourth year that Auckland has been in third place. The cities named first and second are German-speaking cities (Vienna and Zurich). That makes Auckland, New Zealand the best place in the world to learn English in terms of quality of living.
The survey ranks 230 cities. It considers things like culture, environment, education, safety, political stability, housing, and how easy it is to do business. New Zealand cities were also noted for offering lifestyle choices that are attractive to the younger generation.
So, if you want to learn English in an English-speaking country, Auckland, New Zealand offers you the best quality of living available.