A new survey is ranking the friendliness of flight attendants on all major airline companies.  Conducted by the site AirwareWatchdog.com, the poll has found that Spirit Airlines has the worst reputation for its staff.  Twenty-six percent of the respondents say they've had to deal with rude flight attendants while flying Spirit -- more than any other airline.  Air Canada was voted the second-rudest airline, followed by Frontier Airlines and Virgin America.  At the bottom of the list, and therefore earning the title of friendliest flight staff, is Southwest Airlines.  Only one percent have had a bad experience with attendents after giving their business to Southwest.