Whenever I go back to NZ I try and go ANZ and of course their route is LHR-LAX-AKL. Although I think in AW they said something about new agreements between Australasia and the UK? Meaning that ANZ for example could open up new routes into the UK if they wished in future.
Although I’ve never been able to afford to fly ANZ biz, Chris, I have flown econ a fair few times and could never fault the service ANZ have to offer. I think by the time you go ANZ should have rolled out their re-fitted 744’s on the LHR-LAX routes.