Agree. The Polaris seat is simply better, and doesnt have the annoying tray table under the entertainment screen that you bang your knees into that AC does,
Aside from that, Its not fun when your AC seat deflates in flight... Deflategate
I would also simply not trust AC to bring me to YVR in time for my flight to AKL, given how often AC transborder flights are delayed and cancelled. With a <50% on time performance, and zero IRROPS recovery, its a toss up whether or not something will go wrong, and when it does, there is noone to help.