Dividend stocks play a key role in a good retirement portfolio, but investing indiscriminately in companies just because they offer a big yield or have a recent history of payout growth will likely cause your portfolio's performance to fall short of its potential. To help you find high-quality, dividend-paying companies that are positioned to elevate portfolio performance, we assembled a panel of three Motley Fool contributors and asked each to profile a top income-generating investment. Read on to see why they think McCormick (NYSE: MKC), Hanesbrands (NYSE: HBI), and IBM (NYSE: IBM) are dividend stocks that can help investors build a golden retirement nest egg. Image source: Getty Images.Continue reading