The first death that changed a demon heart and deserve to be respected was Haku.
The second death that saves life of a good leader, kazekage. Chiyo sama also deserves the honor.
The third honorable death is Jiraiya, he gave everything, for the sake of peace and his student.
The fourth is Itachi, he spent his whole life for the sake of village til the very end. The only minus from me is he spare no innocent (child) and his parents.
The fifth is Neji, he died to shield for Naruto, a friend honor death.