NEW YORK (TheStreet) -- The dividend yield of the S&P 500 is 2.15%, less than half of the index's historical average, but still greater than the 10-year U.S. Treasury note.These are difficult times for income investors. While plenty of high-yield opportunities exist, investors must always consider the safety of their dividend and the total return potential of their investment ( Radio Shack ( RSH and Supervalu ( SVU are two stocks that recently suspended dividends and suffered precipitous share price declines). TheStreet Ratings' stock rating model views dividends favorably, but not so much that other factors are disregarded. Our model gauges the relationship between risk and reward in several ways, including: the pricing drawdown as compared to potential profit volatility, i.e. how much one is willing to risk in order to earn profits?; the level of acceptable volatility for highly performing stocks; the current valuation as compared to projected earnings growth; and the financial strength of the underlying company as compared to its stock's valuation as compared to its stock's performance. These and many more derived observations are then combined, ranked, weighted, and scenario-tested to create a more complete analysis. The result is a systematic and disciplined method of selecting stocks. The following pages contain our analysis of 10 stocks with spectacular yields, that ultimately, we have rated "Sell."