Here are three stocks with buy rank and strong income characteristics for investors to consider today, December 31st:Alexander's (ALX) : This real estate investment trust which is engaged in leasing, managing, developing and redeveloping properties, has witnessed the Zacks Consensus Estimate for its current year earnings increasing 7% over the last 60 days.This Zacks Rank #1 (Strong Buy) company has a dividend yield of 8.2%, compared with the industry average of 4.8%.Kforce (KFRC) : This company, which prov ...