Every so often, I consider dropping the star ratings from my reviews. After all, ratings are a convention, not a requirement. Novels like A Suitable Boy confound the one-dimensionality of a 5-star rating system and leave me stymied. This is a 5-star novel. It is also a 1-star novel. Do I split the difference, give it 3 stars? Or do I depart from tradition and leave it unrated? You already know the answer, of course,…