Which is the best course after b com? i am an average student having 85%marks. which course is more prefferable to me

I am doing my b com at mg university and scored overall85% in the 1st 4 semesters. I scored 94%in plus two(state)and I scored 90%in sslc exam(state). my degree course come to an end on april2014. My ambition is to become a bank employee. Which course is more preferrable to me?