My vote would be QF, at that time i'd want to sleep and prefer the Skybed for that. Also love the QF breakfast and the way you can pre-order it on the card they give you. YMMV.

Also, IIRC CX uses regional business class on their 330 to likes of BNE / PER etc... I dont think they ever had any 2 class A330 aircraft with l/h config. Definitely some 3 class though.