book 22, question 3: (((read details of what I'm talking about))))) here's the question:Identify one aspect each of plot setting, character, and theme in the odyssey. Which do you consider the most impressive?

The most important part of the setting is the various places that Odysseus visits, the many lands he goes to and learns about the various peoples who live there.  Unlike most mythological characters, Odysseus is willing to dress himself as a beggar to win in the end against the suitors; most Greek heroes would not do that.  The most important theme is probably, "There is no place like home," and regardless of how hard Odysseus struggles or how many times he gets sidetracked, he continues to fight to get back to his beloved Penelope.  This is probably the most important part of the story.