This Week in Barron's: On the surface Sears Holdings doesn't look like much but some investors have confidence in its assets and its chairman going forward; Gamestop, is being overlooked by many investors who think gaming is shifting to a new model; As companies use 'moats' to keep a competitive edge, Morningstar rates companies by their moat characteristics online for investors; Brinker International is behind the profitability of Chili's in such a weak economy through cost cutting and expanding its customer base;