Investors interested in stocks from the Medical - Products sector have probably already heard of Zimmer Biomet (ZBH) 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.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 ...