What does ponyboy say is the difference between darry and his father is?

Ponyboy notes that the main difference between Darry and their father is that Darry is more strict and holds higher expectations for him and his brothers. While their father was caring and nurturing, Darry feels a responsibility to keep the family together after their parents' death. This often leads to tension between them, as Ponyboy struggles to understand Darry's tough love.