Usually Argentina wins against Mexico, specially when they really have to, however the question is trickier than it seems because of the possession, Mexico usually plays for possession and should have most of the possession even if they get wrecked in goals, as happened in 2010, a 3-1 win for Argentina but the Mexicans got more possession than Argentina.
I would not be surprised at all to see a solid Argentina win by 2 or 3 goals and Mexico still with more possession.