I posted about CL on your other thread... I'll answer the Bungalow question here. The Bungalows are DVC, so would need to be booked via renting points or they are occasionally available for cash booking on Disney's website:
https://disneyworld.disney.go.com/resorts/polynesian-villas-bungalows/rates-rooms/
They are cute/fun, but I don't totally love them. I'd rather be in a regular room, frankly.
As for other longhouses - I like Samoa (but so does everyone else) and Rarotonga (views not the best but excellent central location). My least favorite is the Fiji/Tuvalu/Aotearoa side of the resort as it feels a little too "off to the side" for me. I like being more in the center of things at Poly. But I'm splitting hairs quite a bit with that comment.