akb626: Out of LAX, Alaska is better [cheaper in J] than Aeroplan for Japan, New Zealand, Europe (looked up Paris), South America (looked up Buenos Aries and São Paulo). So that's all of them except the South Pacific - it doesn't seem CX flies to any of those islands on first glance.
This is excellent. Thanks for the feedback. Between this info and the info provided by tth6133, I am going with AS! Thanks!