As a WP/*G, I'd prefer to take QF ex SYD/MEL TT and AirNZ ex AKL.

Since the changes last year, *G is much easier to attain via AirNZ if you travel a lot NZ domestic on the cheap fares.

Anyway, the few additional bits to the WHY meal when comparing QF134 (8:55pm) with NZ121 (7:30pm) do not break the deal.