Because

Winning based upon nothing more than because.
The All Blacks should beat the French at home 20-16 because NZ are just the better side.( Traille, Jauzion, Servat and Fulmence, whilst good, are not good enough).

Australia ahould beat the Welsh because there is talk about hurting the Wallbies where it really matters most to most of them, in their pocketbook....20-19.

South Africa should beat Ireland in a dull, dullv affair 10-9 because they know that Australia and New Zealand are going to win. ( Sexton must prove disappointing and nobody can fix it, including wood warmer Mushy.

Argentina shopuld beat Scotland 24 20 because most of the Scottish players are still inebriated after their triumph over Australia, including that bald headed dipsomaniac Andy Robinson.