The thing is when Sparda the strongest Devil Knight a full demon sealed the gate between the human and the demon world. His power has also left on the other side. Than he had two sons from a human mother. Sparda realized this world is meant for human. Dante and Vergil when they came to know their power in DMC 3 story line Dante is half as strong as Sparda so if they'd put their power with the amulets together they would like Sparda. But Dante in the DMC1 game surpassed his fathers power already. Dante isn't really a good hero but he isn't evil, he hates devils he fights because he loved his human mother. He is like his father. Vergil is evil because instead of having a life, when he realized his power he wanted more.
Originally posted by streekz
well how can devils love anyone but them selves? (sparda)
both dante and vergil are half human so can both love wiv there human side, dante seems to be intouch wiv his human side more than vergil..