Also please consider if you will need to redeem one-way awards or roundtrips. Only a handful of FFPs allow it. I personally left miles and more after 100k miles accrual because I was almost never redeeming for roundtrips.

Since you are based in Canada, why not aeroplan?

Also how is status important for you? For examples, are you valuing comp upgrades or are you flying business anyways? Or do you want freebies like bags? Do you have some/any of the benefits already available through other ways like credit cards or existing statuses?