I've stayed at both resorts, and loved them both. If money were no option I'd go for AKL in a minute. I really like having interior corridors to the rooms and the close proximity to the food court. We preferr a pool view to a savannah view because it's closer to the food court, pool, etc.
But, if you're trying to spend less money, I don't think you'd be disapointed in CBR. The grounds are beautiful, the rooms are large and clean, and the CM's are so friendly there! If you choose CBR, you can always go over to AKL and visit to see the beautiful lobby and view the savannahs.