Valentine's Day may be mostly about celebrating with your significant other. But don't forget to call your mother too. Our readers love their Ma Bell, that is.

AT&T (T) hasn't been the most exciting stock to own over the past few years. Shares fell in 2013 and 2014.

But the stock continues to be a hit with many conservative investors who fawn over the company's big dividend. AT&T yields 5.4%.

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