Ponyboy has totally different relationships with his older brothers. Sodapop is his idol. He loves Sodapop and is very close to him. He says that he "can tell Soda anything."
"Soda is "always happy-go-lucky and grinning" and the type of person who doesn't drink alcohol because "he gets drunk on just plain living." He listens to everyone, "understands everybody," and is Pony's confidante."
In contrast to this close loving relationship with Sodapop is Ponyboy's volatile relationship with his oldest brother, Darry. Pony and Darry are always at odds. Darry gets frustrated because Ponyboy "never thinks" and is always doing things that put the family's living arrangements at risk. Darry is the "father figure" since the death of the boy's parents. If they get into trouble the state agency will separate them. Darry is working two jobs to try to keep the family together and is hard on Ponyboy because he has to be. It isn't until the end of the novel that Ponyboy grows up enough to realize that Darry and he may not ever be close, but Darry really does love him.
In the beginning of them book he said that Darry doesn't like him but we would soon find out he does, he wants Pony to not turn into him or Soda [a dropout] even if Darry have the money. His relationship with Soda is very good, Soda always stick up to Ponyboy whenever something happens while Darry takes everything too serious [in his opinion]. But after Pony ran away and get to meet in a long time their bond became super good. At the end of the book they did have a fight which soon to be forgiven. They swear never to fight again due to Soda being stressed out about taking sides sometimes.