Here are three stocks with buy ranks and strong growth characteristics for investors to consider today, March 7:Ralph Lauren Corporation (RL) : This lifestyle products company carries seen the Zacks Consensus Estimate for its current year earnings increasing 8.5% over the last 60 days.Ralph Lauren Corporation has a PEG ratio of 1.15 comparedwith 1.66 for the industry. The company possesses a Growth Score of A.Sterling Infrastructure, Inc. (STRL) : This infrastructure solutions provider carries a Zacks Rank ...