I need to write a compare and contrast essay. please help!?

They are both tragedy's, they are both written by Shakespeare, they are both about a troubled Monarchy, they both contain crazy or insane people in it, They both have ghosts one of Banquo and one of Hamlet's father I think. Differences. Macbeth the main character is the usurper to the throne and in Hamlet the main character is the son of the dead king. Macbeth monologues with himself about killing others while Hamlet's famous monologue tends toward suicide. I'm not good with differences, but there are some ideas for you.