On my SFO-Amsterdam leg I had my first experience with KLM Royal Dutch airlines, based in Amsterdam.
I was impressed by the professionalism and warmth of the flight staff. Right after we took off, the head flight attendant came and sat with me and asked where I was going, how I was feeling, and gave some info about the flight. Then he asked about my Kindle and I asked him about his flight routes.
During food service, each time as the stewardess put something on my tray/table she said: "There you are." With lots of eye contact and a smile. Quite a lovely phrase.
I'll be back, KLM.
I’m not calling KLM’s service into question, but I think you need to account for the fact that, in general, attractive people are treated way better by staff of any company. If you’re a woman, you don’t even have to be that attractive to get special treatment and attention – anyone who’s objectively a 5 or above will be in for an easier time.