Not sure what PPO is but I am assuming that you are looking for the fastest way to go from the Poly to MK and Epcot.
If the monorail is running it will be you easiest way to get to MK followed by the boat or ferry.
For Epcot, the fastest way if you are pressed for time is a cab followed by the monorail. Depending on where your room at the resort is, walking to the TTC and catching the monorail directly to Epcot is often faster than taking the resort monorail all the way around and transferring.
This link will help with any other transportation questions.
http://www.ourlaughingplace.com/aspx/twiz.aspx