We've stayed at RPR (Royal Pacific) 3 times. It is absolutely beautiful. We loved it, and when we do US/IOA trips, we will NOT stay anywhere else. Our boys loved it. Everyone is correct FOTL is beyond worth it. We thought the rooms were lovely, adequate size, and the resort itself is gorgeous. My little one was just 3 the first stay, and the zero entry area of the pool was "his" spot!! As he got older, he now loves the water area, and swims all over the pool. The restaurants are wonderful, and citywalk has some very good places as well. Margaritaville, NBA (we had an AWESOME meal here). But, back to the resort, you cannot go wrong with any of the US resorts.
I do have to admit, we've never stayed deluxe at disney, we are going to AKL in Jan. so I won't know how to compare until then, but I have no doubts they'll be just as nice. It is worth the money in my opinion to stay onsite at one of the US resorts.......... you'll be with all of us on that point the first time you use your FOTL!!!!
Have fun!!!