Investors interested in stocks from the Financial Transaction Services sector have probably already heard of Fidelity National Information Services (FIS) and Equifax (EFX) . 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. We have found that the best way to discover great value opportunities is to pair a strong Zacks Rank with a great grade in the Value category of our Style Scores system. The proven Zacks Rank emphasizes companie ...