I guess not too many fly FC but I fly JI a lot for business but mostly on the CRJs since they are the short hops I take to DCA and PHL. The bigger planes seem to be on the FL routes or LGA & BOS. JI flies CRJs, F100s, and is ordering more 737s. They have no 320's anymore. Service in coach is friendly and they seem to get you served even on the short RDU-DCA hop compared to US Express.