2014 FIFA World Cup Brazil: Group D and G are the toughest

Group D and G seem to be the toughest at the '14 World Cup Brazil. Do ranking, team value and World Cup trophies confirm this? And what about the weakest?

U.S. Draws Difficult Group For 2014 World Cup - CBS Texas

World Cup Preview Part One: Groups A, B, D, and G

Base camps during the 2014 FIFA World Cup Brazil

World Cup 2014 groups - CBS News

2014 FIFA World Cup Cheat Sheet: The Round of 16

Cameroon upset Brazil, still eliminated from World Cup

Men's World Cup and Global Politics - Balsillie School of

World Cup 2014: Who will win in Brazil next year?

World Cup 2014: Breaking down the group stage heading into Brazil

Brazil v Germany (2014 FIFA World Cup) - Wikipedia