AKL is more of a "real" hotel. Indoor corridors, elevators to get around, valet parking in front (maybe CSR does valet too). Several restaurants right there off the lobby and easy to get to from your room. Very interesting animal watching areas. Extremely pretty lobby. Daily entertainment from tours to story tellers to campfires. They also have a kid's club (Lion King theme). For $35 more I'd probably go to AKL, and I like CSR a lot.
Biggest downside of places like AKL is that the parking lot is a bit of a hike from your room. AKL is right by the Animal Kingdom, but about 4-5 minutes farther away from MK and EPCOT, and perhaps 1-2 minutes farther away from Disney Studios and Downtown Disney as compared to CSR.
Portie