Korean...
I worked there for 8 years. Probably THE best commuting contract on the planet, unless you're lucky to be able to get on with one of the Chinese carriers out of Beijing and get based in YVR.
Korean might not pay that well but their equipment is excellent. Extremely high maintenance standards. The training is a bit of a hassle to get through but once you're done, you're left alone.
In the 8 years, I never had my days off violated once. Always got Christmas off. Yes, you have the option of saving your 2 days leave per month and taking 24 somewhere later in the year or you can add them to your blocked days off each month to get 11 days off a month.
Business class travel to and from your base. No hassles.
Sure the pay could always be more but it was a very good gig.