That being said about the 737 above, I'll give you a spiel for the 717. It's more technologically advanced and is very automated; I love it. For the same time away from home on a trip, you'll probably fly more in the 717 (maybe 4 legs a day for a total of 6.5 hours versus a one leg day on the 737 for 4.5 hours), so that equals more pay on the 717. The 737 type rating would be nice to have since not many other airlines have 717s. But as far as I know, the AirTran plan is to become an all 737 fleet someday, so you'll fly the 737 sooner or later. I'm enjoying my time in the 717 for a few more years until our leases run out, but I'm sure I'll enjoy the 737 just as much. Your seniority based on age in your hiring class will let you choose your jet. Expect 737s to go first. There's a two year seatlock when you train on your equipment, then you're free to move. Hope this helps. Either way, welcome to the youngest all boeing fleet!