While the allure of flying on the 748i for the first time might end up being the deciding factor in a chance, I'm hesitant to give up my currently booked ZRH-YUL on LX in C. So my question is this: For those of you that have flown both, which do you prefer in C, LX on the 333 or 343, or LH on the 748i? The 748i route has one distinct advantage -- I've already paid for F (award flight), so if F space opens up on either FRA-IAD or FRA-LAX next April, I'd jump right on that. But in the meantime, without that guarantee, should I keep my LX flight, or switch to this one?