Yeah, I liked the chances they gave to Costa Rica. I sure didn't expect them to do this well, but now that I've watched both their games, they definitely have the potential to make it to the quarter-finals with their draw. They will likely play Ivory Coast in the next round and then probably the Netherlands, who they have a chance at beating, but not sure they will with how many break away goals the Dutch have had.
Thrax, if you need some contrarian teams, Costa Rica could be one, but you might appear as a bandwagon fan with them since no one gave them any credit. Mexico would be a good one for you since you could say that you equally hate your mutual neighbor. You could also go with Italy because I know you are gay for Pirlo: http://babb.telegraph.co.uk/2014/06/37-reasons-why-andrea-pirlo-is-the-worlds-greatest-living-human-man/
Otherwise though, I think Brazil and Germany are going to be the two teams left standing in the final.