It depends on if there is something else that you would like in a longhouse. The majority of TPV rooms are in Tahiti & Tuvalu. Of the two I would say Tahiti is more popular, but Tuvalu is a bit of a hidden gem. We've stayed in it twice. There is really no beach between Tuvalu & the lagoon, so when you're in your room it feels like you're right out over the water. It is very close to the GCH (restaurants, shops, monorail platform) & the volcano pool. If you sit out at night you can often hear the music from the luau (but it's never loud enough that you can hear it in your room if the patio doors are shut). Tahiti, on the other hand, is on the other side of the resort, and is just a short walk to the TTC. It is bigger than Tuvalu, and has a nice beach along the lagoon.
Thank you very much! I just need to stop obsessing! I would be happy at either so maybe I will just leave my request as I have it already (balcony, third floor) and see where they put us.