The number 1 rule that you will be told in these forums regarding where to buy is to purchase where you would like to stay. Now you sound like me and are flexible between AKL and VWL, so now you need to ask which makes more sense. In my mind there are two major factors: your vacation habits and money.
Your vacation habits, and the rooms that you want to reserve, may drive you to which resort. If there are specific room categories that you're going to want during heavy travel periods (i.e. Christmas/Easter), then you're going to want the 11 month booking window. This would mean AKL if you're looking for value rooms or Grand Villas. Those would be tough to get at 7 months. VWL rooms at Christmas are also tough to score. If you're going to have such requests, then this should be how you decide.
If you're not going to have such requests, then it should get down to the money. You can probably get a better price per point on VWL from what I see listed, however, the maint cost per point is a bit higher. I'd probably go VWL for the cheaper cost up front.
Reality should probably be that you should actually just shop for both and find the contract that feels right. Find something that has the right number of points and is priced where you feel that you are getting a deal. Personally, I wouldn't worry too much about the UY on your first contract, but others would differ with me on this. If at all possible, matching your UY for future add ons would simplify things, but really wouldn't matter that much as long as you can manage it.
As a thought, what about a small contract for each? 100 points VWL and then 100 points at AKV at a later time (targeting the same UY). This way you'll be able to get the 11 month mark booking advantage at both (you could only book 100 points at 11 months, not 200 in this example).
Buy either one that you want. Just feel good that you're getting a good deal. You won't go wrong with either. Look for a contract that is loaded up front with banked points so you have a trip ready to go when you close. That is a big difference between resale contracts.
Best of Luck!