The current gouges are pretty accurate as well as the info on the other threads. They are currently hiring into the CRJ and Brasilia with at least one class a month in each airplane it looks like. We were told for the CRJ to expect MSP, IAH or ORD. A recent Brasilia class all got FAT except for a few who bid for and got SBP and LAX.
The interview will be with a line captain, who will ask you IFR, systems, weather, and HR type questions. It seems to vary a lot based on your background (prior 121 vs CFI). You will also do a CRM exercise with someone else in your interview group. It's nothing you can study for, just use teamwork and ALL your resources to work through the problem. If you have your ATP or the written there won't be a written test. They may or may not do a sim, plan on doing it though. It will either be a Frasca 142 or an ATC 810. The Frasca wasn't too bad, had a display, was sensitive but it didn't have any insane quirks. Nothing insane, just basic IFR procedures, holding, and an ILS approach. Good Luck!