Using an AP we are saving a little over $30 a night over the AAA rates at each of the hotels we are staying at (BC, AKL savannah, Poly), in late July to early August. The savings varies a little with each (AKL being the best savings at $35 a night, Poly being the least at $32 a night). Overall after purchasing the AP (instead of the MYW 10 day hopper expiry, no pluses) we come out around $210 ahead on the AP rate.
At this point though for 2005, depending what time in August you want to go (especially the time for which AP rates are already out), you may be subject to just choosing whatever is still available, be it AAA, or AP.