James is right about the record of NZ over the last decade (Since 2003) they have won 21 tests but the majority of those victories were against teams ranked lower than them...
PNG (2)
France (4)
Samoa (1)
Wales (1)
Great Britain/England (6)
Tonga (2)
On a head to head basis....Since 2003 Australia and New Zealand have played each other 29 times, Australia winning 22, NZ 5 and there was 2 draws.
That being said 3 out of those 5 wins by NZ were in Tournament finals...
- 2005 Tri Nations (NZ beat us twice in this tournament)
- 2008 World Cup
- 2010 4 Nations
So I guess to sum it up...
Australia will dominate their group and will make the final and I think they will go through undefeated
NZ have a great record in tournament Rugby League in modern times so they too will make the final
They are the 2 best teams in the world
The result in the final could go either way really....Australia to win by 1-12 but Australia must improve their record in finals
* It should be noted too that Australia has won the last 7 straight test matches against NZ
* Also NZ have never beaten Australia in a World Cup match in England
* NZ haven't won a test since November 2011 when they beat Wales 36-0
For latest rankings...
http://en.wikipedia.org/wiki/RLIF_World_Rankings
Australia are way in front of everyone else