The NL roster for the All-Star Game currently consists of 20 everyday players and 13 pitchers.
Going purely on total 2013 Wins Above Replacement (Baseball-reference version) for everyday players, 13 of those 20 everyday players are also in the top 20 in WAR among NL everday players this season: Molina and Posey at catcher, Goldschmidt and Votto at first, Matt Carpenter at second, Wright at third, Tulowitzki, Cabrera and Segura at short, and in the outfield the Carloses Gomez and Gonzalez, Domonic Brown and Andrew McCutchen.
Missing from the actual roster but in the top 20 in WAR are: Continue reading