Argentina, Spain or Germany maybe.
No way, the team is much weaker than the 2010 and 2006 ones were. Many players out of form, the defense unstable and a number of injuries lately.
Brazil, Argentina or maybe Spain.
A bunch of injuries on the German team lately.
Personally, I'd be surprised if Germany makes it into the quarter finals.
QF should be doable as the 2nd round opponent will come from the Russia/S.Korea/Belgium/Algeria group. 3rd place like in '06 and '10 would be a huge surprise for me.