When it comes to market share, beverage categories are always battling for the biggest piece of the pie. In the alcohol market, the wine subcategory is threatening the beer subcategory, according to a recent Gallup poll. The survey found that of Americans who drink alcohol, 36 percent say they drink beer most often and 35 percent say they drink wine most often. Compare this with 1992 when the preference for beer was 20 percentage points higher than wine, the poll notes. Young adult drinkers between the ages of 18 and 29 also have shifted toward wine and spirits, whereas older drinkers say they drink wine the most. Nevertheless, beer still remains the drink of preference for the majority of today’s young adults, it reports.