Balaram is unique. There is no other personality like Him because Balaramji, He takes part in all the five rasas intimately with Sri Krishna. As santa rasa, it is Balaramji Who expands Himself through His energy to create Goloka Vrindavan. The spiritual world of Goloka is the expansion of the energy of Balaram. A land which is and all of the surroundings simply offering the most sweet and loving service to the Lord. Balaram also expands Himself through His energy as Krishna’s crown, as Krishna’s flute, as Krishna’s slippers, as Krishna’s clothes, as all of Krishna’s ornaments. It is all Balaram Himself just appearing in these most wonderful forms just to give pleasure and service to Sri Krishna and to assist Him in attracting the hearts of all living beings by His beautiful decorated forms. You see Krishna is all attractive. The supreme pleasure of Lord Krishna is to attract everyone’s heart. So, when Balaram appears as the most beautiful crown, the most beautiful flute, the most beautiful jewels, the most beautiful lightening-golden coloured dhoti, He assists Krishna by decorating His body in such a way that His attraction becomes even more attractive, to attract the hearts of all. So, this is how Balaramji appears in the santa rasa.
As far as dasya rasa, whatever Balaram does is in the mood of the menial servant, simply trying to please Sri Krishna, His brother.
As sakhya rasa He appears as Krishna’s friend. They wrestle together, they play together, they dance together, they herd the cows together, they argue together, they fight together. Why? All in the mood of just giving pleasure to Krishna. Just to supply service to the Lord.