My favorites are the BW/BC/YC/Swan/Dolphin loop and the GF/CR/Poly.
They are easy to get to from the parks and take bus or monorail transportation.
WL is lovely too; you can access via the boat from MK.
AKL is lovely, but it is difficult to go from AK to AKL and back again, because AK closes early. That is one you may want to make an ADR so you can park for three hours, and tour the resort; it has a lot of interesting things to do and see.