Here are three stocks with buy rank and strong income characteristics for investors to consider today, May 1: Ecopetrol S.A. (EC) : This integrated energy company has witnessed the Zacks Consensus Estimate for its current year earnings increasing 10.8% the last 60 days. This Zacks Rank #1 company has a dividend yield of 18.2%, compared with the industry average of 5%. The Western Union Company (WU) : This money movement and payment services provider has witnessed the Zacks Consensus Estimate for its current ...