The based CC are 95% fabulous! The HKG based Chinese CC are mostly (as referred to earlier) represent MongKok airlines and have little or no personality. The rest of the Asian CC based in HKG are mostly OK, friendly and helpful but only 10-20% of them would meet the levels of camaraderie shown by the overseas based crews.
So, the HKG CC are unhappy with based CC. I say jealousy is the reason and attaining a personality is the answer!