Will the AB defend their crown?

So many theories and opinions have been shared in the past few weeks leading to the Rugby World Cup showpiece, which commenced yesterday in the land of the Queen. However, the most talked about topic is with regards to the chances of the AB blacks retaining the trophy they won 4 years ago on their backyard. Will the BIG FOUR legends of the game have their swangsong in style (Dan Carter, Ritchie McCaw, Conrad Smith and Tony Woodcock). OR will their party be spoiled by their rivals' fantastic four (Matfield, Four du Preez, Jean De Villiers and Schalla). What are your views?