My almost 6yo and almost 7yo love All of a Kind Family with Suzanne Toren reading. She voiced Mama very well, and recently when I was correcting some behavior my daughter told me I sound like Mama from the book. LOL I guess I enjoyed that one too. 😉
Another favorite has been The Blue Fairy Book narrated by Angele Masters. We keep going back to that one so I know they love it.
I will second Winnie the Pooh with Judi Dench and Stephen Fry, etc, my kids keep asking for that one again too.
The Complete Just So Stories read by Johnny Morris, and Beatrix Potter: The Complete Tales with Gary Bond, Michael Hodern, etc were both enjoyable.
The kids really liked Uncle Remus narrated by Joel Chandler Harris but for some reason I had a hard time getting into that one.
HTH