Not always. I've stayed at both AKL/Kidani and Pop/AoA on many occasions. It seems to run 50/50....the times I've been in a hurry, the bus has gone to AKL first, with Pop being last. Drives me nuts. They must know when I need to get to Pop quickly! Other times AKL was first.
I honestly can't remember the order or route going back to the airport. I'll be sure to remember after my stay in two weeks!!!