Investors interested in stocks from the Banks - Southwest sector have probably already heard of First Horizon National (FHN) and Cullen/Frost Bankers (CFR) . But which of these two stocks is more attractive to value investors? We'll need to take a closer look to find out.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 Scor ...