Investors with an interest in Medical - Products stocks have likely encountered both Royal Philips (PHG) and EssilorLuxottica Unsponsored ADR (ESLOY) . 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 Zacks Rank favors stocks with strong earnings estimate revision tr ...