Originally Posted by chrisreedrules

I'm curious why not PSA? All 3 WOs are a great choice for someone looking at a regional airline but if you can't get the 145 in MIA, then commuting to CLT or DCA will likely be easier than a commute to PHL.

In a nutshell:

PSA: best QOL of the 3 WOs, worst flow language
Piedmont: best flow language of the 3 WOs, bad schedules and only PHL is commutable
Envoy: bad schedules and good flow right now but it will decrease with time, best bases for commuting and 175 (if that's a consideration of yours)

Of the 2 options you've laid out I would go with Envoy IF you may be able to get the 145 in MIA. If not go with Piedmont.