If studio, choose Jambo, and request Arusha savanna view, along Zebra Trail (good view, puts you near the pool, and faces west, thus avoiding sun pouring in through the windows in the morning).
If 1BR or 2BR, choose Kidani, and request Sunset savanna view (largest savanna which has giraffes) and either close to the Timon elevator if you want to be near the bus station, or close to the Rafiki elevator if you want to be near the pool.
For neither should you request close to lobby. At Jambo, those rooms do not have the best views; at Kidani, there is a high risk that the request will not be met and you will instead end up somewhere in the next county as far from the lobby as you can possibly get with a forever walk to lobby and bus station.