There is no fixed route for the Epcot Resorts during the morning rush. Our highly dynamic dispatching system is demand based, and responds to the crowds. Hundreds of buses go through the Beach Club every day. Not all of them go to the Swan or Dolphin, nor do all of them go to the Boardwalk. Buses are dispatched according to anticipated demand. If a bus fills up, another is dispatched off to handle the extra crowds. I have not heard of any service issues lately at the Epcot Resorts.
You will hear many different opinions on the Beach Club transportation... some pro, some con. Just keep in mind, just because one person had a certain experience with one bus a year ago, doesn't mean you'll have that same experience. Hundreds of buses go through the Beach Club on a daily basis, some are bound to be full, some are bound to be late. However, the vast majority of the time, buses are running on time, and according to anticipated demand.