I'd agree with you about France - Spain except that Spain has an even worse reputation for crashing in the World Cup than France.
Actually I'd like to see France beat Spain and then face Brazil. Fat Man Ronaldo would love to get some goals off the French to repay the 1998 disaster.
The Spanish play good soccer - if we put aside that they showed up with their B-team today. So Spain vs. Brazil would be the tougher and more exciting match. Spain has a team that could send Brazil home!
Spain likes to wait to choke until the 1/4 finals. So expect them to get whipped by Brasil after beating an uninspired French side. :)