I'm with the previous posters. When I applied to the regionals Republic was one of the few companies I had no interest in applying to due to them not having cancellation pay. I can't even imagine being based in NYC or ORD in the winter with no cancellation pay. I'm ORD based and have at least one turn every trip in the winter cancel. Their FO pay scale is also the worst out of any airline for the E170/5 (although their captain pay scale is much better). First year Commutair pay is almost on par with 8th year RAH 170 pay. Of the two companies you listed I would personally pick Commutair if it were me.