In Golding's classic story Lord of the Flies, Ralph and Jack are bitter rivals, who are diametrically opposed to each other. Ralph is the elected chief and champions civility, structure, democracy, and rescue. Jack resents Ralph for being elected chief and purposely undermines his authority. Jack is a selfish, violent savage who is more concerned with hunting pigs and having fun than cultivating a civil society. Jack successfully usurps power, becomes the leader of his own tribe of savages, and hunts Ralph throughout the island.
Ralph and Piggy become close friends who rely on each other for support and encouragement. Ralph and Piggy share the same affinity for civilization and recognize the importance of maintaining the signal fire to increase their chances of rescue. Both boys oppose Jack and his savage hunters and struggle to retain their civility. Piggy relies on Ralph for protection, while Ralph relies on Piggy for his intelligence. As the situation on the island becomes increasingly desperate and hostile, Ralph and Piggy become closer friends and attempt to challenge Jack's tyrannical reign.
Ralph and Simon have a unique relationship and share similar views on how their makeshift society should function. Although Ralph views Simon as a strange, soft-spoken boy, he appreciates him helping build the shelters and enjoys Simon's comforting words of encouragement. Simon looks up to Ralph and values him as a leader. He also desires to please Ralph and views him as a kind-hearted ally.
Jack views Simon with contempt and criticizes him whenever he gets the chance. Jack makes fun of Simon for fainting, overrules him when he speaks, and views him as an annoying, useless individual. Simon recognizes Jack as a ruthless, cruel person, which is why he chooses to support Ralph. Although Simon does not verbally express his negative opinion of Jack, his actions indicate that he does not like him. Simon gives Piggy meat without Jack's approval, picks up Piggy's broken glasses, and volunteers to walk through the forest at night against Jack's preference.
Jack and Piggy are fierce enemies who hate each other. Jack views Piggy as a soft, worthless boy who is loud and obnoxious. Jack goes out of his way to intimidate Piggy, continually interrupts him when he addresses the group, and even physically assaults Piggy several times. Piggy represents and supports everything Jack hates, which includes Ralph. Piggy recognizes that Jack is evil and will kill him if given the opportunity. Piggy also speaks out against Jack and criticizes him for his savage behavior. In order to avoid Jack's wrath, Piggy relies on Ralph for protection.