I consider both to be two of the best. The Jambo GVs are all single story, with large rooms, including a room with a pool table. The master bathrooms huge and borders on the hedonistic with its TV to be watched from the large tub. Possibly its best characteristic is its huge covered balconies, the best balconies of all rooms at any WDW resorts.
The Kidani GVs are all two-story. They downstairs is on the fourth floor of the building and second floor is on the fifth (top) floor the building. Multiple balconies but not huge like Jambo. It is best designed 2-story GV on site. The laundry room and a bathroom are just inside the main entrance door. The combined living room, dining room and kitchen Aris large and the living room gives a "great" room effect and for the living room portion the ceiling is the top of the second floor and has floor-to-ceiling windows for viewing. The master bath for the master bedroom is large. and the second and third bedrooms are at the opposite ends of the hall on the second floor with a bathroom near each. Right at the top of the stairs is a good-sized alcove where there is queen pull-out, table, TV, and dresser, basically adding a sleeping area that no other GV has. Max occupancy is still 12 but that area gives you an extra sleeping area when putting four of your group in an upstairs bedroom is not desirable.
There are two standard GVs at Kidani for lower points. Internally they are the same as the other GVs and actually have a savanna view -- they look over the Pembe Savanna, which is fairly narrow in that area, and are the only two GVs on that savanna. All the others GVs at Kidani overlook Sunset savanna, and have excellent views.