I think it really depends on what interests your daughter. If she likes the princesses, CRT is lovely, but IMHO, Akershus is the better princess experience and is cheaper. CRT's biggest appeal is that it is in the castle, which was once and done for us. The food and service there were mediocre at best.
BOG is lovely and, if she likes the Beast, this may be the way to go. It is a very large restaurant, however, which kind of takes the "specialness" away for me.
The PP's suggestion of afternoon tea is a nice one if your daughter isn't interested in characters and would want a more sophisticated experience.
You may also want to consider a signature. Quite honestly, our most special meals have been at Cali Grill. It's pretty unique to be whisked up in the private elevator and the views of MK are stunning. You can also see the fireworks from MK, EP and DHS from there.