According to Mary Shelley who is more of a 'monster', Frankenstein or his Creation?

One approach to this question would be to say that the creature in 'Frankentein' was himself the only monster. However, as we soon realise, the creature is benevolent at heart and only becomes monstrous due to the unjust way in which society treats him. The bleak, miserable world which Shelley portrays, full of hypocrisy, oppression and prejudice gains exposure through the depiction of the monsters 'fall from grace'. It is through the monsters suffering that …

…hates himself for them. He is evaluating himself through the deep-set benevolence that he still carries, and he is ultimately disgusted. So much cannot be said for Frankenstein, who, even in the face of death was unwilling to fully accept his part in the wretched tale. Not once does he contemplate the implications of his actions. I therefore conclude that, despite the monsters murderous rampage, he is in fact less monstrous than Victor Frankenstein is.