What I hear from most guys on my own commute on XJT and Envoy leads me to believe general day-to-day QOL is similar on their properties to Mesa but there also appears to me to be much greater discontent at those places, especially at Envoy. Most FOs complain about the long upgrade times and stagnation. That seems to be the hottest button. Of course, I have only J/S with a very small number so my experience may not be representative.

Undoubtedly pay rates are higher at most places compared to Mesa, but I don't hear much about that at all, either here or when J/S'ing.