I don't know why anyone would go to ExpressJet today. The writing is on the wall. Skywest has shrunk their stepsister to half its old size and it just appears it'll get worse. 9 year FOs or something like that. Really sucks for the pilot group. It'll take a while for people to get to United through the program with XJT, and you still have to meet certain requirements and pass the Hogan (I believe). If you're choosing between those two airlines alone, I'd recommend envoy.