Investors with an interest in Beverages - Soft drinks stocks have likely encountered both Fomento Economico (FMX) and Monster Beverage (MNST). But which of these two stocks presents investors with the better value opportunity right now? Let's take a closer look.Everyone has their own methods for finding great value opportunities, but our model includes pairing an impressive grade in the Value category of our Style Scores system with a strong Zacks Rank. The Zacks Rank is a proven strategy that targets companies with positive earnings estimate revision trends, while our Style Scores work to grade companies based on specific traits.Right now, Fomento Economico is sporting a Zacks Rank of #2 (Buy), while Monster Beverage has a Zacks Rank of #3 (Hold). This means that FMX's earnings estimate revision activity has been more impressive, so investors should feel comfortable with its improving analyst outlook. But this is just one piece of the puzzle for value investors.Value investors analyze a variety of traditional, tried-and-true metrics to help find companies that they believe are undervalued at their current share price levels.Our Value category grades stocks based on a number of key metrics, including the tried-and-true P/E ratio, the P/S ratio, earnings yield, and cash flow per share, as well as a variety of other fundamentals that value investors frequently use.FMX currently has a forward P/E ratio of 26.34, while MNST has a forward P/E of 33.59. We also note that FMX has a PEG ratio of 1.78. This popular figure is similar to the widely-used P/E ratio, but the PEG ratio also considers a company's expected EPS growth rate. MNST currently has a PEG ratio of 2.28.Another notable valuation metric for FMX is its P/B ratio of 1.93. The P/B ratio is used to compare a stock's market value with its book value, which is defined as total assets minus total liabilities. For comparison, MNST has a P/B of 7.89.These metrics, and several others, help FMX earn a Value grade of B, while MNST has been given a Value grade of D.FMX sticks out from MNST in both our Zacks Rank and Style Scores models, so value investors will likely feel that FMX is the better option right now. Time to Invest in Legal Marijuana If you’re looking for big gains, there couldn’t be a better time to get in on a young industry primed to skyrocket from $17.7 billion back in 2019 to an expected $73.6 billion by 2027. After a clean sweep of 6 election referendums in 5 states, pot is now legal in 36 states plus D.C. Federal legalization is expected soon and that could be a still greater bonanza for investors. Even before the latest wave of legalization, Zacks Investment Research has recommended pot stocks that have shot up as high as +285.9%. You’re invited to check out Zacks’ Marijuana Moneymakers: An Investor’s Guide. It features a timely Watch List of pot stocks and ETFs with exceptional growth potential.Today, Download Marijuana Moneymakers FREE >>Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report Fomento Economico Mexicano S.A.B. de C.V. (FMX): Free Stock Analysis Report Monster Beverage Corporation (MNST): Free Stock Analysis Report To read this article on Zacks.com click here.