The AF FAs (females) are cold as ice. The males are much nicer.
I was on BA once going to South Africa. My male FA gave me one drink and wouldn’t give me another. At 6’4 and 250, apparently I scared him. Different airlines, different FAs.
The average age of FAs on Singapore is around 21, the average weight is on the order of 100 lb and the demeanor is always extremely nice.
Now, for service, I prefer Singapore, but I know I can't count on any of them helping me (6'2", 240 lb) in the event of an emergency. I would take an airline like Singapore over an American-based airline any day.
BTW: I fly internationally several times a year and have been to 16 different countries all over the world on many, many different airlines........
That's typical Frenchwomen, unless they find you attractive.:-) It's not something peculiar to flight attendants.