Realty Income and BP have similar dividend yields, but their risk profiles are very different.Dividend yield alone doesn't tell you enough about a stock to make a final investment decision. That's highlighted by looking at BP (BP +0.65%) and its 5.6% yield and comparing it to Realty Income (O +1.15%) and its 5.3% yield.If all you cared about was yield, you'd probably buy BP. And you'd probably end up sorely disappointed. Here's why Realty Income is a better dividend stock. Examining the dividendAs noted, BP ...