Another stock might be the apple of Buffett's eye now.Anyone familiar with Warren Buffett knows the famous investor likes Apple (AAPL 0.02%). He has called the company a better business than any of Berkshire Hathaway's subsidiaries and better than longtime Berkshire holdings American Express and Coca-Cola. However, another company is attracting Buffett's attention even more these days: Occidental Petroleum (OXY 0.88%). Could Buffett like this stock more than Apple because of its once-in-a-generation opportu ...