We used to live 30 minutes away from WDW and took my DD ever since she was one month up to 18 months. We are going back in Feb. when she will be 24 months.
I booked Hollywood and Vine in HS - I know it does not have the best food reviews- but it has the Disney Junior characters ( Little Einsteins, Oso, and Handy Manny). First time here for us! We are also going to, for the first time, Tusker House breakfast and Le Cellier!!!!
A place that would be good IMO would be Sci-Fi Dine In Theater at HS.. it has a giant movie screen that plays movie clips non-stop so it can give your DS something to watch when you want to eat

We have also gone to ( and LOVE) Mama Melrose in HS .. they give you bread right away and that kept my DD entertained.
TREX in DTD and Rainforest Cafe (DTD and AK) all were very interactive and loud.. just in case of an outburst.. and my DD loved the change in atmosphere ever 20 minutes

We are also going to HDDR this next trip. I went years ago and I think it will be highly entertaining for a toddler..and the best thing about going with a toddler is that they are FREE!!
I would not recommend China.. very crowded and seemed irritated with a toddler in a high chair
