Switzerland, no matter what happened yesterday. Both Germany and Mexico would take a game against Switzerland over a game with Brazil in the next round, all day, every day, and twice on Sundays, no questions asked.

Having said this, it's true that it's still very early, and anything can happen. Mexico could collapse, Germany could still win their group or get knocked out entirely, Brazil could collapse, who knows? But what is certain is that Germany losing increased the probability that they won't win their group, and the probability that they'll play Brazil in the second round. This isn't good for either Germany or Brazil, but it's good for Mexico.