The single greatest thing about Roger Ebert, in my opinion, is that he was one of the very few professional critics, and to my knowledge the first big-name critic, to take children’s media and animation seriously. He understood that they are art, just as much as any Serious Drama is art, and that they are a significant cultural artifact that should be respected, studied, and understood.
In recent years I found myself disagreeing with him a lot, sometimes strenuously. However, I never lost my respect for him. He will be missed.
Welcome to Ponyville, Mr. Ebert.