Which of New Zealand's 3 major islands is the smallest?

Answer 1

Stuart Island, the most Southern Island, is the smallest, and also nearly uninhabited because of its rare wildlife, which only live on Stuart Island and nowhere else in the world, so I guess its kind of like Antarctica, no one lives there, but there are lots of scientific labs and maybe one hotel.

Answer 2

Rakiura/Stewart Island.
Stewart Island, south of the South Island, is the smallest of New Zealand's major islands.

Answer 3

If you mean which of the three main islands is smallest, then Stewart Island, furthermost to the south. It's the little one clearly smaller than the other two on any map of New Zealand.