Definitely CX.

In Nov/Jan our family of 3 flew CX between ADL/HKG/LAX on A330 and 77W aircraft and YVR/HKG/ADL on A340 and A330 aircraft all in Y.

Yes the seats can feel to get a bit hard after a while but an extra pillow, blanket or a jacket soon solves that problem. The fact that the seat in front doesn't recline in to your face is great and the IFE will definitely keep you occupied.

Cabin crew were very helpful and for Y the meals were fine, after all we are talking airline food.