NEW YORK (TheStreet) - Goldcorp, Rio Tinto, and Kinross Gold are among metals and mining stocks expected to have a greater upside potential, compared to peers. The S&P 500 Index has gained 12.9% so far in 2010, while the SPDR S&P Metals and Mining ETF surged 32.7%, outperforming broader markets. Given the current run-up in metals prices and the positive momentum in equity markets, metals and mining stocks will likely provide investors attractive returns during 2011.