We've stayed at the CR four different times and each time we've shared with the Poly going to the resort from the airport, in addition to the Poly, we've also shared with Grand Floridian and WL.
Each time for us, the order was Poly first, then if we had Grand Floridian ppl., we'd go there next, if not, we'd go to WL and CR was the last resort.
While there are no set routes, most of the time it's about the same each day give or take a little. We've stayed at a few other resorts multiple times and it's always basically been the same route as the first time.