I haven't stayed at either one but I have heard really good things about AKL concierge and their lounge (I have seen pics) is gorgeous. I don't think WL has a lounge per say, but I may be wrong on that.
With that said, I would probably do WL basic and go crazy at the parks for a few days since they are so close to WL. Then I would move over to AKL, get a Savannah room with concierge service and relax relax and relax!!! AKL grounds are supposed to be really nice and since the resort is away from the parks, I would use this one for when you are going to be at the resort more.
Either way pick the concierge service when you will utilize it best, if you rather come off your wedding/honeymoon with relaxation and better service, pick concierge first.
Check the prices though, I think concierge at AKL is more expensive. The rates I checked were higher than the Poly concierge which is why I went with Poly. We will be trying AKL next though.