I left Chautauqua (RAH) 5 years ago, and would strongly recommend against going there. From what my buddies say, it's only gotten worse. Of the 3 that you mentioned, XJT has always been the best IMO. In many ways their contract is superior to most majors (except for the hourly rates). I have a few friends there that are FO's. They are able to manipulate their schedule (due to the contract) to credit way over 100 hours, every month. So even though the pay rates are similar, an XJT FO has the potential to make MUCH more than an RAH FO.

Past performance is no guarantee of future results though

Good luck to you