Air China - B748, B77W or A333, which business class is better?
I have the chance to travel to mainland China from Germany via Air China (CA),
From Frankfurt, there is some selection of flights that I can choose from,
FRA-PEK, CA966 (77W), CA932 (mix fleet of 77W and 748)
FRA-CTU, CA432 (333)
FRA-SZX, CA772 (333)
Which one have the better experience of business class seats, lounge and airport experience?
I understand that, for the latter 2 333 flights are not daily,
Any advice?