What? do you really believe that? Yes, it does make a difference, but not enough to stop them winning the world cup, as Don Quixote said Spain have never won it and they have done well in the youth tournaments. So really it depends on how they play there and then, not on their past!
South Africa v Mexico has probably been the best game so far because of the the goals and celebration, but England v USA was an alright game aswell. It wont start to get going until all the group stages are over though i dont think.