We have Jambo as our home resort. We have allegiance there. It's big and glamorous in African décor. It has a great pool that has plenty of room to enjoy with the kids.
Two nice restaurants that serve foods that are out of this world. If you want just quick service....it is a short walk outside under a covered walkway (very important during those spotty rain showers that Florida has on occasion) Everything is within the building.
Kidani in the other hand is smaller (u don't understand Disneys reasoning for this since it is a DVC resort. There is no real good food service besides "grab and go." No sitting area for those who want to sit and eat.
The pool and outdoor activities are across the parking lot. Not crazy about that set up. The pool is nice...don't get me wrong there.
The one great point I think Kidani has is the under building parking for those of us who drive down to Disney. If you like taking you car out to parks or store errands then coming back to a parking spot directly below you room then this is a plus!
All in all both resorts have their good points as well as their bad.