Investors looking for stocks in the Retail - Restaurants sector might want to consider either Darden Restaurants (DRI) or Wendy's (WEN). But which of these two stocks offers value investors a better bang for their buck right now? We'll need to 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 proven Zacks Rank puts an emphasis on earnings estimates and estimate revisions, while our Style Scores work to identify stocks with specific traits.Right now, Darden Restaurants is sporting a Zacks Rank of #2 (Buy), while Wendy's has a Zacks Rank of #3 (Hold). This system places an emphasis on companies that have seen positive earnings estimate revisions, so investors should feel comfortable knowing that DRI is likely seeing its earnings outlook improve to a greater extent. However, value investors will care about much more than just this.Value investors also try to analyze a wide range of traditional figures and metrics to help determine whether a company is undervalued at its current share price levels.The Style Score Value grade factors in a variety of key fundamental metrics, including the popular P/E ratio, P/S ratio, earnings yield, cash flow per share, and a number of other key stats that are commonly used by value investors.DRI currently has a forward P/E ratio of 19.15, while WEN has a forward P/E of 27.46. We also note that DRI has a PEG ratio of 1.91. This popular metric is similar to the widely-known P/E ratio, with the difference being that the PEG ratio also takes into account the company's expected earnings growth rate. WEN currently has a PEG ratio of 1.96.Another notable valuation metric for DRI is its P/B ratio of 6.87. 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, WEN has a P/B of 8.70.These metrics, and several others, help DRI earn a Value grade of B, while WEN has been given a Value grade of C.DRI has seen stronger estimate revision activity and sports more attractive valuation metrics than WEN, so it seems like value investors will conclude that DRI is the superior option right now. Zacks Names "Single Best Pick to Double" From thousands of stocks, 5 Zacks experts each have chosen their favorite to skyrocket +100% or more in months to come. From those 5, Director of Research Sheraz Mian hand-picks one to have the most explosive upside of all. You know this company from its past glory days, but few would expect that it's poised for a monster turnaround. Fresh from a successful repositioning and flush with A-list celeb endorsements, it could rival or surpass other recent Zacks' Stocks Set to Double like Boston Beer Company which shot up +143.0% in a little more than 9 months and Nvidia which boomed +175.9% in one year.Free: See Our Top Stock and 4 Runners Up >>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 Darden Restaurants, Inc. (DRI): Free Stock Analysis Report The Wendy's Company (WEN): Free Stock Analysis Report To read this article on Zacks.com click here.