Mistras Group (NYSE:MG – Get Free Report) and Rockwell Automation (NYSE:ROK – Get Free Report) are both computer and technology companies, but which is the superior investment? Get Mistras Group alerts:ProfitabilityThis table compares Mistras Group and Rockwell Automation’s net margins, return on equity and return on assets. Net Margins Return on Equity Return on Assets Mistras Group 1.64% 9.37% 3.54% Rockwell Automation 12.03% 30.14% 9.83%Earnings & ValuationGross Revenue Price/Sales Ratio Net Income Earnings Per Share Price/Earnings Ratio Mistras Group $729.64 million 0.42 $18.96 million $0.37 26.30 Rockwell Automation $8.26 billion 4.75 $952.50 million $8.52 40.97This table compares Mistras Group and Rockwell Automation”s gross revenue, earnings per share and valuation. Analyst RatingsThis is a breakdown of recent recommendations for Mistras Group and Rockwell Automation, as reported by MarketBeat.com. Given Rockwell Automation’s stronger consensus rating and higher possible upside, analysts plainly believe Rockwell Automation is more favorable than Mistras Group.