The airline with the best average rating is Singapore Airlines with 8.7/10.
The average flight time is 6 hours and 38 minutes.More information
Had a very wonderful flight. Senior FAs (leading and chief)were awesome - polite, easy-going, proactive, enjoy striking conversation and knowing you're local, they'll slip to Singlish. While at the galley talking to them, Chief Steward came by and offered me a glass of champagne and dessert from Business. When a leading stewardess knew that they were a few first time flyers in my group, she gave me 30 playing cards to give to the group as souvenirs. Wow . . .
The junior ones (in blue kebaya uniforms) were though polite but flustered and stressed trying to get their work done according to the book.
SQ still switches on their entertainment system only after a/c has level off. This can be 45-60min after seated in the cabin after boarding. This is when EK, QR and and even MH is better as they have their system already on when pax starts boarding. My guess SQ has this strict rule is due to their scar (and recommendations) from the SQ006 crash.