As a former laker I would have to say it depends on where you live or where you want to live. Sounds like either place would offer great experience but the money would be way better at flight express. All things being equal I would probably do the flight express thing just for the better compensation and probably a better QOL. However to answer the turbin/piston question; Turbine is way better if your looking to check application boxes. But in the end, no one here can make the descision for you. Follow your heart young man and the right door will be obvious