Hi to all of you, and thank you for your comments.
We do stick to AC EX YVR, as their Executive First is great and they have SAVER EXECUTIVE FIRST to/from SYD. It is only that we have to visit Singapore that we choose to fly SQ. The reward mileage is exactly the same with NO EXTRA for the A380 or 777ER.
I read great comments on THAI via Bangkok, but that is an extra flight both ways.(Same mileage but longer flying times, and a change in BKK).
We are using AC aeroplan reward miles. Did you read that the *A is increasing its mileage rewards this summer?
A bit like HHonors a few years ago!!
Enjoy your flights!