Blend together butter and sugar in a large bowl. Add banana and eggs; mix well. In a separate bowl, combine flour and baking soda; gradually add to butter mixture. Fold in walnuts, chocolate chips and cherries. Transfer to 4 greased 51/2"x3" loaf pans. Bake at 350 degrees for 32 to 37 minutes or until a toothpick inserted near center comes out clean. Cool for 10 minutes before removing from pans to wire racks.