Here is an excerpt from my upcoming book " The Luxury Guide to Walt Disney World". Maybe it will be of some help.
The newer longhouses of Tokelau, Tahiti, and Rapa Nui feature the largest rooms, all of which come with patios or balconies and a convenient location near the Ticket & Transportation Center.
The two-story Niue and Tonga longhouses, with the Tonga being an all-suite building, are small and intimate with ground floor patios and second floor balconies. Water view rooms in the Tahiti building front a lovely beach with great views across the lagoon but are also located very close to the TTC with noise from the ferryboat during park hours. One side of the Samoa and the Niue buildings face the rambunctious Volcano Pool, a plus or minus depending on your personality. One side of the Aotearoa, Tonga, and Rarotonga longhouses face the monorail, and one side of the Rapa Nui faces the parking lot, although these are actually considered garden views.
If staying in the Fiji, Tuvalu, Tonga, and Aotearoa you had better enjoy the beat of drums because the Polynesian Luau is held nearby. The worst view is from the so-called garden view side of the Tuvalu longhouse that stares at the next building only a few feet away.