If you provide some idea of what's important to you, it might help to get more specific suggestions. Do you enjoy strolling through the grounds or want something more centralized? If you plan to spend a lot of time at DD, PO might be nice because of the boat access. If you like to spend a lot of time in the hot tub, CSR might be nice as the hot tub is huge. You get the idea...
Also, if you plan to dine at the resort quite a bit, you might look at menu's and consider the available restaurants when making resort choices. The food court at CSR works differently than the rest, so if you're planning lots of meals at the food court, you might check into that.
Finally, there are some very good rates available at AKL and WL that bring them pretty darn close to a moderate rate. If you have any flexibility in your budget, you might also look at those.
Happy planning!