There are three 'loops'...
Resort loop..runs clockwise...stopping at TTC, Polynesian, GF, MK, CR, back to TTC.
Express loop....runs counterclockwise...TTC directly to MK and then back to TTC.
Epcot loop...runs from TTC to Epcot. Runs through Epcot, then drops you at the platform, and goes directly back to TTC.