I agree. The Tahiti building is fabulous in terms of view. You will do better walking to the TTC rather than the GCH. Rapa Nui is in the same location, but only has parking lot or garden view.
My new favorite is Tuvalu. The lagoon view is to die for. The other side would be a garden view. It's the smallest building, but that means it's the quietest. It's literally on the lagoon. The GCH is a few steps away as well. It's also one of the closest buildings if you care to walk over to the Floridian. It's the best of both worlds in my book.