Which of these books deserves a profound studying ?

I would absolutly say Wuthering Heights or To Kill a Mockingbird, my two favorite books. Da Vinci code would be interesting becasue it's so recent, and there is a pre-quel which helps cement the characters personality, however I felt that it was a story that was more about the plot than the characters. fantasy clics can be difficult to dissect becasue they can be less relatable to readers but that also may be a fun challenge for you. Hands down though I would recommend Wuthering Heights, the characters in that story are so strong and twisted, I just find it so fascinating. Makes me want to read it again just thinking about it :)