Focusing only on Y comfort, you want to avoid cramped 9 abreast 787s and 10 abreast 777s. Rules out all United, Air NZ and American flights
That leaves you with 9 abreast 777 (Delta and Virgin Australia), 747s (Qantas) and A380 (Qantas), A330/A340 (Hawaian, Fiji, Air Tahiti Nui)