Uruguay/Ghana, I'm cheering for Ghana but really, I like both teams. However, I do think this Uruguay team is one of the best in recent WC's, and Suarez/Forlan are on a roll together, so I don't think Ghana will beat them.
Germany/Argentina, will be an exciting match no doubt. This is one match where I really don't see either team losing, Argentina has a strong attack and a really creative midfield, which is exactly the same as Germany. But Argentina's defense has looked shaky at times, and their coach hasn't been pressured into making any real drastic decisions or changes from a good opposing team, which I think is going to happen here.
Brazil/Netherlands, I like the Netherlands, especially with the addition of Robben to their lineup who will add a lot of creativity and opportunity to the game as we saw against Slovakia. I think he's going to have a big impact on the game in finding weaknesses in the Brazilian defense that has looked so strong recently. The Netherlands need to tighten up defensively and prepare for the counterattack which Brazil has thrived off of. It'll be a very interesting match.
Spain/Paraguay, as much as I would like Paraguay to win and move one step closer to seeing Larissa Riquelme's D Cups, I can't really see much going their way.