I just got back from a wonderful trip to the AKL today, it's a beautiful resort.
I asked for a third floor room, as that is the level the lobby is on.
You can request a room close to the lobby as even Arusha view rooms can be toward the end of the trails. But keep in mind that I found that the giraffes and some other animals would be at the back of the savannah in the morning before they were fed, so a room farther from the lobby would give you a closer view in the early morning so long as you don't mind the walk. It took me about four minutes to walk casually from the lobby to the rooms at the far end of the hallways in Jambo house.
Also, if you have the time and funds, the Wanyama safari is absolutely wonderful. The tour was great and the trainers so friendly and kind, and the dinner at Jiko was simply outstanding.
Enjoy..