Each of these stocks offers something different for investors.Cava Group (CAVA -0.11%) was a sensation on Wall Street when it went public just a year ago as one of the only exciting initial public offerings in a dry year. It has been compared to the restaurant mega-chain Chipotle Mexican Grill (CMG -0.33%) for its healthy fast-casual food and prices.But is that a fair comparison? And stacked up against each other, which stock is the better buy today?Is Cava the next Chipotle?Cava is a small but fast-growing ...