Vertex,
Having tried charter, low cost schedule and conventional (if thats the right term) schedule ::::::::::: No contest. Charter and low cost are all about extracting the maximum amount of revenue from the employees and paying the absolute minimum that they can get away with. Usually, you wil have unstable rosters, a poor (if any) pension plan and little job security.
I now work for a conventional sceduled airline. It sure has its problems but I wouldn't go back to charter or low cost for all the tea in china.