Mesa
As an ex-Mesa, I can vouch for the previous statements. And it is not getting better. Just check-out the latest issue of ALPA magazine.
With an attrition rate of 75 pilots a month (I did some fact-checking with several ex-colleagues) they already are cancelling flights left-right and centre. They are now offering a $5000 signing bonus if you leave SkyWest, Republic or the likes to go to Mesa. How's that for pilot poaching?? They have lowered their minimums to 500 total and 100 multi even from non-Mesa training programme guys. That says a lot about their current status.
I will stop here because I have to be careful, Mesa is notorious to sue people for diffamation.
Cheers.