I think it all depends on what you want out of a rewards credit card. Disney VISA offers 1% back in the form of Disney Dream Dollars that can only be spent at Disney.
AAA's VISA Diamond Advantage card offers 3% back on gas purchases and 1 point per dollar on all other purchases. At 5,000 points, the AAA VISA sends you a voucher for $50 towards anything that AAA offers.
Neither one has an annual fee. Disney VISA sign up bonuses of 50 Dream Dollars can be found on the internet if you do a search. AAA offers a $15 credit to your bill.
With the Disney VISA, you will be dealing with Chase. The AAA VISA is administered by MBNA.
The AAA VISA has an interest rate of 7.9% or 13.9% depending on your credit score. The Disney VISA is 12.49% or 17.49%. If you carry a balance at all this could be the deciding factor.
I have the Disney VISA, too. Like dkostel, I'm relatively unimpressed with the so-called offers that I've gotten from them. I have seen a couple of sneak previews of movies and did take advantage of the 6 months at 0% interest for a
DCL cruise. I also purchased the Tarzan tickets ahead of the crowd thru the Disney VISA email offer. Other than that, not much. I guess we'll go to the character meet and greet at EPCOT next summer just to get the free photo. And you do get a discount on purchases over $25 at WoD in DtD.
In all, it will depend on what you want to get from a rewards card. If those Disney Dream Dollars are not something that you're going to use after your next WDW trip, then I would say to go for the AAA card.