Here are three stocks with buy rank and strong momentum characteristics for investors to consider today, Dec. 15:Customers Bancorp, Inc. (CUBI) : This bank holding company for Customers Bank has a Zacks Rank #1 and witnessed the Zacks Consensus Estimate for its current year earnings increasing nearly 8% over the last 60 days.Customers Bank’s shares gained 9.9% over the last three months compared with the S&P 500’s advance of 3.6%. The company possesses a Momentum Score  of A.Isabella Bank Corporation (ISBA) ...