Dividend investing has a long, successful track record that makes it one of the best strategies investors can use. The best dividend growth stocks to buy tend to be those that regularly raise their shareholder payout.The asset managers at Hartford Funds looked at the performance of the benchmark S&P 500 going all the way back to 1930, and found that dividends contributed 40% to the total return of the index over that 91-year period. Reinvesting dividends in the benchmark, coupled with the power of compoundi ...