Investors looking for stocks in the Insurance - Property and Casualty sector might want to consider either RenaissanceRe (RNR) or Cincinnati Financial (CINF) . But which of these two stocks presents investors with the better value opportunity right now? Let's take a closer look.The best way to find great value stocks is to pair a strong Zacks Rank with an impressive grade in the Value category of our Style Scores system. The proven Zacks Rank emphasizes companies with positive estimate revision trends, and ...