With thousands (about 3,800) of pilots and loads of "lifers" to push through before you can upgrade if that's what your goal is. SKW is large and in charge with lots of money in the bank and a happy pilot group.

Compass has about 700ish pilots and 7 lifer pilots. LAX is very junior with no reserve. SEA is also junior for the moment but is also pretty small. MSP is senior for now but over time will turn junior with the vast majority of the new hires being from or living west coast and as the MSP pilots move on.

Upgrade times are hard to determine at CPZ right now since the flow pilots are all gone. Normal attrition will continue just like every other regional airline (hiring hasn't stopped and won't stop) so don't get too caught up in the fact that the "guaranteed" movement at compass is no longer.

Pick your poison and I think you'll be as happy as you can be at a regional.