Also, the resorts have some great restaurants as well. When you want to get away from the crowds for a dinner break, I'd suggest doing that.
Also, you can make Hoop reservations 2 years out. The earlier you reserve, the better seats you get, so you might want to go ahead and do that now. We love the Hoop - been to it 5 times. Your DD shouldn't get bored - there is action, music, food - something going on at all times.
At 20 months, your DD might still be a little scared of the characters. I would suggest a character meal where the characters are "people". Cindy's is a good choice. If you can't get into Cindy's, don't forget the Princess breakfast in Norway. We've been to both, and honestly, other than the view, enjoyed both equally. Also, 1900 Park Fare has Alice, Mary Poppins, and other face characters as well as the Pooh set. We had Pooh and company stay away from our table when our daughter was still scared of him. But she loved Alice, et al.
I would also suggest the Biergarten. They have an oompah band there. The food is pretty good, but its when the kids head down to the dance floor and my husband and I get to actually EAT that I love this restaurant!