Coursework progress.

So far, I have read 3 out of 4 books in an attempt to pick the best one to go with 'Lolita' by Vladimir Nabokov, my first choice; I am currently reading 'Crime and Punishment' by Dostoevsky. My other choices of book were 'The Collector' by John Fowles and 'Enduring Love' by John Mcewain. At the moment I am thinking of using Crime and Punishment and Lolita for my coursework, as they are both interesting novels following a similar theme of obsession and corruption. I am interested in exploring the theme of corruption within the mind and a kind of self inflicted destruction in my question.