Dunno why people keep picking Argentina to win world cups. They are absolute bottlers with a virtually identical record to England in the last 20 years despite going into every tournament with one of the best squads. People slate Holland for underachieving but at least they've been to a final and a couple of semis recently.
I would be shocked if they came up against someone like Spain conceded less than 3. In fact take out Messi and I don't think there's much difference in depth between Argentina and England. People see their front 3 and lose their heads, apart from the attack they are weak all over the place and have nothing on the bench to call upon.
If Messi turns up and plays like Messi then they might scrape past a couple of the big boys. If not, I think they'll implode again.
...Brazil on the other hand don't look unbelievable on paper, but they know exactly how to win world cups and they just don't shrink under pressure.