I think this thread will be a popular one
IMO, an airline reflects the 'attitude' of its homeland. Has anyone ever flown on Olympic airways? Let's just say the customer service attitudes onboard are 'different' from the Asian carriers, in that regard, we, as CX regulars are spoilt.
SQ FA's are organised but robotic, Thai are lovely, Qantas are very confident to the point of either being rude or excellent, whereas our own Cathay exude a kind of 'HK' atmosphere in that they are well presented, love to bustle around and look busy (even if they aren't), have a multicultural crew and are very consistent.
That said, it often surprises me with CX how 'on' or 'off' a whole FA crew can be. That is, how a positive or negative attitude can seemingly involve more than one of the FA's allocated to a flight. Sometimes it is the foreign born FA allocated to a flight that provides the warmth and good service that seems to inspire others.
Just a thought.