Advantages of OKW:
Very Close parking (if you drive a car)
Much bigger rooms
renovated rooms, but still not as updated as AKV
Very Quiet
Fewer points (probably)
Disadvantages of OKW
Can be a pain to get to Hospitality house, you have to drive or bus, or reserve close to the building
Older Resort, less elegant, but still very cozy and nice (you'll have to pick which theme you like)
Advantages of AKV
Newer resort, I think with a more elegant feel
Savannah views are amazing, even without-the animals are visible and cool
Much better counter service
Disadvantages of AKV
potentially far from car or reception area
probably more points
This is just what I think, just my opinion. I generally prefer OKW as a resort, but love both. Good luck!