If having a savannah view that is close to the pool is what they are looking for, that puts them on the Zebra Trail (on the map, it's the upper right hallway of rooms).
To narrow it down more, I would recommend getting a room close to the elevators. I say that because it will be easier to get to the pool and restaurants without having to walk all through the hotel. There is an elevator at the intersection of the main Zebra Trail hallway (the curved part) and the first offshoot. If you take that elevator, there is a door to the pool on the first floor (right near Simba's Club House).
Our room was the first room off this intersection in the offshoot hallway, savannah-side. The view was good and it was easy to get to the pool and restaurants. The lobby was a longer walk, but it's such a nice hotel, we didn't mind.
There are also laundry facilities on the first floor near this intersection if that is important.
Let me know if there is anything else you need to know.