Without question, the deep South American AA FAs have about the best schedule you could imagine-plus the pax are unconcious or at best semi-ambulatory for 80% of the flight! It's like a plane full of placid zombies. No wonder they're always so happy. Second best schedule I think are the NRT crews. One NRT FA had a basically regular, full-time SECOND JOB! Wow! That's the exception, of course.