Is there a character meal to meet both Cinderella and Snow White? My little boy got a big kiss from Snow White on a Disney cruise, and now he loves her.
I believe that Snow White is usually (always?) at the breakfast at Cinderella's castle, so that is your best bet (assuming you can get an ADR for the breakfast). Snow White is also often at the breakfast at Akershus, but Cinderella never is.
We had lunch at CRT last week. Cinderella stays at the lobby for pics with your group. Snow White was upstairs stopping at each table to greet you and photo ops. She was great as she remembered DS's name even when she passed by our table at the end of the meal.