Investors interested in stocks from the Mining - Gold sector have probably already heard of Gold Fields (GFI) and Royal Gold (RGLD) . 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 Zacks Rank favors stocks with strong earnings estimate revision trends, and our Style Scores highlight compan ...