We stayed at AKL in July. I debated over whether to spend the extra money for a Savannah view. It would cost us nearly double of the standard rate. I decided we would go w/ the standard and keep our fingers crossed about an upgrade. I requested bunk beds and my kids were really counting on that. When we arrived around 5:30pm we were told that we had an upgrade to a pool view room, but without a bunkbed. Our room was over Boma's roof (some of these rooms are good and some are not), but we had a good view. However, while we were still checking in I asked if we could get a complementary Savannah room even if it was the next day. (I'm in my 40's and I've gotten bold and nice about it, with a smile) He said we could w/ a bunkbed, however he couldn't tell us wh/ room it would be. We decided to change rooms the next day. Now personnally I like the poolview room better. But the kids loved the bunk beds.
Now the point to all this is if I had it to do over again, I'd still book the standard room. I wasn't all that impressed w/ the Savannah room view. We were up Kudu Trail on the first wing NOT facing the buzzards (which I am thankful for). We were on the second floor which was nice because we could see under the trees. Once the kids saw the animals a few times the newness wore off and they enjoyed watching TV from the bunkbeds when we were in the room.
If we had been facing the parking the lot, overall the kids and myself would have been just as happy and DH didn't care either way.
So my suggestion is to save your money, get a standard room, and spend the savings at Boma's. If you want the experience of a Savannah room guaranteed, try splitting your stay between the two (standard and Savannah). Again this would save you money.