By Dan Weil It defines best stocks as those with significant competitive advantages, and it thinks those advantages are growing. With the S&P 500 having dropped 19% so far in 2022, you might see this as a buying opportunity. But, of course, you’ll want to be a bit cautious, as raging inflation, soaring interest rates and a potential economic downturn could push stocks down further. Still, Morningstar has generated a list of 10 stocks to consider now, using its roster of the 127 best stocks to own and filtering for the 10 most undervalued among them as of Sept. 12. MethodologyThe companies in t…