Here are three stocks with buy ranks and strong growth characteristics for investors to consider today, August 22:Royal Caribbean Cruises Ltd. (RCL) : This cruise company carries a Zacks Rank #1, and has witnessed the Zacks Consensus Estimate for its current year earnings increasing 3.7% over the last 60 days.Royal Caribbean Cruises has a PEG ratio of 0.44 compared with 1.94 for the industry. The company possesses a Growth Score of A.Norwegian Cruise Line Holdings Ltd. (NCLH) : This cruise company carries a ...