Last I knew, the AK bus would leave WL, stop at GF and then direct to AK. I believe this was the same for the HS. Epcot would be WL, FW, then Epcot.
WL bus to DAK doesn't stop at GF any more. It now stops at CR. At least that was the route when I visited the weekend of December 12th. And when we got on the bus going to DHS for our evening ADR, the bus took the strangest route to the park. We drove past both the front and back of Swalphin and YC. Everyone thought the bus driver was crazy and had gotten lost or we had gotten on the wrong bus, because initially it looked like we were heading to EPCOT. Took us over 30 minutes to get from WL to DHS. The route back was the normal one between the resort and the park.