Investors with an interest in Transportation - Services stocks have likely encountered both Kuehne & Nagel International Ag (KHNGY) and Grupo Aeroportuario del Pacifico (PAC) . But which of these two stocks presents investors with the better value opportunity right now? Let's 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 companies wit ...