Digital China ( OTCMKTS:DCHIF ) and Mandiant ( NASDAQ:MNDT ) are both computer and technology companies, but which is the better business? We will compare the two businesses based on the strength of their valuation, institutional ownership, risk, dividends, analyst recommendations, profitability and earnings. Valuation & Earnings This table compares Digital China and Mandiant’s gross revenue, earnings per share (EPS) and valuation. Gross Revenue Price/Sales Ratio Net Income Earnings Per Share Price/Earnings Ratio Digital China $2.55 billion N/A $79.01 million N/A N/A Mandiant $940.58 million 4.12 -$207.30 million ($1.01) -15.97 Digital China has higher revenue and earnings than Mandiant. Profitability…