Germany's American Doppelganger: The Miami Heat. This year's germany team is full of stars who have disappointed, and I am predicting that the disappointment ends this year (so far so good considering Miami are now champions). Additionally, the players at the front are tall and always look awkward, but somehow get the job done.
Greece's American Doppelganger: 2001 Baltimore Ravens without the dominating defense. Greece is one of the least interesting teams to watch, but they do have the best name in the tournament: Kyriakos Papadopoulos. There's no guessing necessary to determine where he comes from. There's also no guessing about the Greek's strategy: defend, defend, defend. Like the Ravens, Greece will need to depend on its defense completely stifling its opponent in order to win. Also like the Ravens, the defense needs to score in order to win, and Papadopoulos is dangerous in the air on set pieces.