My daughter liked DHS, mostly because of Disney Jr. If you're staying at a Disney Resort, I would try to schedule your DHS day for when there are evening EMH's. They have a Disney Jr. dance party during EMH's, and that was one of my daughter's favorite things that we did at WDW. Doc is not there, but Sofia & Jake are, as well as Minnie, Mickey and others. It hasn't been overly crowded either time we went, which was once in May and once in October. They don't pose or sign autographs, but watching your child get to dance with their favorite characters is pretty fun. And we got cute videos, and some good candid photos of them dancing.
We also did the breakfast at Hollywood & Vine to meet those characters. Our daughter also liked the Frozen show, Toy Story Mania, the Disney Jr stage show, and eating in the cars at the Sci-Fi Diner. We didn't need a full day there, we did half a day. Afternoon into evening worked for us.