Originally Posted by Fliar
Do yourself a favour, book yourself into the Hilton. It has the best location of all AKL hotels (and is a stunning building overlooking the harbour). From there you're in the Centre/Skytower/shopping areas within 5 mins walking. Just have a nice breakfast at the Viaduct Harbour and then explore the city. There is a spa in/by the Hilton too.
Just be aware that the Hilton is very expensive (by NZ standards). If you only have a few hours then I suggest a trip to the Auckland museum - close to the city CBD (maybe $10 taxi ride), super views of Auckland and the harbour, plus a useful insight into NZ history (maori and european).