The Braves are at a big early-season disadvantage with both of their veteran catchers, Travis d'Arnaud and Tyler Flowers, out. The combination of that and preferring veteran Rick Porcello against lefty Sean Newcomb puts me on the Mets at this low price.
Porcello had spent his first 11 years in the American League. Porcello is 3-1 with a 3.00 ERA in four career interleague starters versus the Braves, but National League teams are mostly unfamiliar with him. 
Newcomb has moved around from bullpen to starter while proving more reliable as a relief pitcher. The Mets' lineup is more dangerous against southpaws with the return to health of right-handed DH Yoenis Cespedes.