Honestly, this World Cup, the only team that I can say has not disappointed is Colombia. They haven't had a single sub-par game and they aren't flattering to deceive (even without Falcao). IMO the winner of Colombia vs France/Germany will win this World Cup
Maybe the Brazil of 2002. To this Brazil, no chance unless they get help from the referees once again.
Not sure any team has ever won a world cup by impressing in the early rounds, it's all about getting out the group and peaking when it matters. Neither Brazil or Argentina have impressed but it's odds on they'll be the two at the big gig...