I talked to a couple of Mesaba guys yesterday, one of them was scheduled for 900 upgrade (Saab FO), He said that the 900s left seat is going more junior that everybody thinks. We were also comparing PNCL with Mesaba, and yes...is not shocking, Mesaba is better than PNCL in almost every aspect. Having said that, MESABA is looking good.......PNCL's "street captains" are being junior manned like 8 year old kids and their QOL is "nil".
I only hear good things about SKW but if the offer is not for the left seat, I personally would pass. Anyhow good luck!