Let's see......POP to AKL....take the POP bus to AK, then hop on the AKL bus.
POP to BW....POP bus to MGM, either walk via the pathway, or take the boat...about 10-15 either way, and quite pleasant. Unless you have a hopper, you will waste a day of park admission going through Epcot and it is a very long walk from the front of the park to IG. There are no buses from Epcot or MGM to BW.
POP to Polynesian...POP bus to MK then either the little boat that runs between the MK, GF and Polynsian, or the resort monorail.
POP to FtW....again, bus to MK then walk (via path) to CR and take the little boat from there, or just take the boat directly from the front of MK that runs to FtW.
Leave about an hour to accomplish most of these routes. If you make the 'getting there' part of the fun, it's really enjoyable!!