I take back everything I said about the quality of football presented by Brazil's national team.
In the last three matches Brazil had a poor football while Argentina grew in the competition, has been playing very well and Messi has been destroying.
Of course Brazil can be the champion, but now, if I had to bet on someone, it would be Argentina. Even more considering that Messi has never won any important championship for the Argentine national team and they have not won anything since 1993, they are playing very well and with much more desire and need to win.