Investors interested in stocks from the Medical - Instruments sector have probably already heard of Alcon (ALC) and Edwards Lifesciences (EW) . 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 Style Scores highl ...