For me I love both orange and banana because their functions in the body are different. Oranges are Rich in vitamin C, which helps the body fight infections. Vitamin C aids tissue repair. Orange Provides potassium, which helps regulate blood pressure etc.
Banana on its own Contains natural sugars and carbohydrates which provide energy. Contains vitamin B6, which supports brain and nerve function. Contains fiber that helps prevent constipation etc. so the two fruits are super.