I agree with MiJo - I believe that the present management of the AKL has made it a policy to upgrade a view when possible because they only have a limited number of standard rooms at the AKL and can afford to do so. It certainly seems like more people get upgraded at the AKL than at the other deluxes.
We've stayed at the Polynesian several times and have never been upgraded. We stayed at AKL once and were upgraded from standard to Savannah...
At the time I thought it was because of my 'shmoozing' the lady at the desk

- you know - telling her that we normally stay at the Polynesian, that we had just come from the HRH and it would be a hard act to follow, that we were looking forwad to seeing the animals, etc. - but after seeing many reports of people being upgraded from standard to Savannah view at AKL I've come to realize that maybe I wasn't such a good talker - it's just that the staff at AKL really wants to make every visit as 'Magical' as possible!
Obviously you can't bank on an upgrade, but based on people's experiences so far I would be hopeful!
You made a good choice in requesting a higher than ground floor room on the Giraffe Trail - if you don't get upgraded. The 'ground' floor rooms there look out onto the bus stop... The Giraffe Trail has NO Savannah view rooms (only Standard and Pool views) so if you get upgraded you will be moving to another Trail
The lowest Savannah level is the second floor - and IMHO it is the best! It's as close to the critters as you can get and we got some GREAT pictures from our 2nd floor balcony on the Kudu Trail. So if they offer you a 2nd floor Savannah view - take it!
