When I was a kid, I thought flight attendants had the most glamorous job. All that travel, all that small talk with strangers, plus surely they were allowed to eat any extra slices of cake. (Side note: remember when airlines served cake? Bring that back, guys.) Between the unlimited cake and fancy accessories -- scarves and wing pins, oh my -- nothing could convince me that airline workers were not completely happy. But, as it turns out, some airlines have happier workers than others (go figure). And, we have to believe that makes a difference in customer service when it comes down to holiday travel crunch time. Wouldn't you rather fly an airline whose employees are well paid and mostly satisfied with their jobs? I would.