Investors with an interest in Insurance - Property and Casualty stocks have likely encountered both RenaissanceRe (RNR) and Berkshire Hathaway B (BRK.B) . But which of these two stocks offers value investors a better bang for their buck right now? We'll need to 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 Zacks Rank is a proven strategy that targets companies with positive earnings est ...