I've stayed both at the Jambo House and Kidani Village and had Savannah views at both. To answer your questions to the best of my knowledge:
1. Savannah view rooms face one of the Savannah's. I'm not sure of all the names but the ones I was on was Uzima (Jambo House) and the Sunrise I think (Kidani Village).
2. Depending on which Savannah your room is on, will depend on the type of animals you will see. I'm not sure if you can request a certain Savannah or not.
3. Animals are not noisy, nor does it smell. I went during September (one of the hottest months in FL) and in December. Both times, it was quite and no smells at all. As an FYI, I noticed the animals were not out until after 9a every morning, so you won't be disturbed in the am.
If I had kids AKV would be the place to stay. Actually, it is now my favorite resort, OKW being my second favorite.
Hope this helps out a little.