For people who take economy class flight for experience, you are missing the point! You just want to get to where you want in quickest and hopefully safest way. Want service? Go business or first class. That is experience!
Korean Airline has trerrible safety record and JAL or Air Thailand do not fly to any major Chinese city directly from Canada. So if you like "stopover" and like to sightseeing in the air port over getting home faster, these are for you!!
No too long agao, I have friend in China who would brag how many different type/brand of cars they were ever on.