So what are the keys to this match?
Scrum: About evens. Wallabies scrum was dominant against England and Wales, but Scotland (whether legally or not) and Argentina definitely had a lot of joy agains the Wallaby scrum. ABs scrum has been solid on their own ball, without really dominating the oppositions' scrums; probably as they've opted for a more mobile front row and lack a scrummaging tighthead lock since Brad Thorn retired. Moody or Crockett for the ABs at loose-head? Moody got outmuscled by Malherbe, but then he was giving away 6kgs to the SA tight head.
For the Wallabies I think Sio showed he is the better scrummager compared to Slipper and him being fit could give Australia the edge come scrum time.
The Breakdown: I thought SA edged this battle on Saturday with Burger and Louw really edging their battle with Kaino and McCaw; certainly in the first half. Pocock is the turnover king this tournament and is the difference between the Wallabies being very good team to great team. Relishing the battle between McCaw and him. Wallabies just edge this.
I think allied to the breakdown are turnovers. ABs are the best at scoring tries from turnovers, whether it was Carter ripping the ball from Burger, which led to the second try. For me ABs just edge this.
The Line-out: ABs have the advantage here with 4 line out targets compared to Wallabies 3. ABs won this battle against SA, even when Matfield was brought on to take charge.
Re-starts: Carter's kicking at the re-starts in the last two games have been spot on. I give the ABs the edge here.
Mauls: Again 50:50. I did notice that Read got penalised in the SA game, when Garces penalised him for coming in from the side a couple of times. Hansen is supposed to want to talk to ref's boss of World rugby to get clarification of this, as he thought Read was part of the maul and so should not have been penalised for coming in from the side. Pocock has scored countless tries in super rugby from the back of mauls. i thought, however, overall NZ defended the the Springbok Mauls really well on Saturday and this may give them the practise needed against the Wallabies.
The kicking game: Expecting light rain on Saturday. For all ABs silky skills and offloads, they are a team not afraid to go to the kicking game. Ben Smith was superb in the air on Saturday the Boks. I'm not sure if Folau is fully fit, and I expect the ABs to test this with some high balls to him; to test that ankle. i thought Milner Shudder was vulnerable in the air and the Springboks did target him in this aspect, where Habana won one particular 50:50 ball against NMS. Expect the Wallabies to have noticed this and Drew Mitchell to do the same.
Discipline: Offsides at the ruck and also foul play. Was surprised how many penalties the ABs gave away on Saturday. Needless to say, this is what kept the Boks in the match, as they did not look like scoring a try, apart from the Pieterson interception, which was called back for a penalty. Stupid penalties like Neck rolls, when clearing out the ruck, will need to be avoided, as we saw with Moody and Matfield (the latter costing SA a kickable penalty).
The Drop goal:
Kiwis seem to be ashamed of this for some reason. But hell, Carter's drop goal on Saturday ultimately won them the game; had he not chosen to slot that one ABs would have lost
18-17. One or two Kiwi fans on here a few months ago said Carter was crap at them and could not do them properly. I'm a big fan of tennis as well, and remember Federer refusing to do the drop shot because he didn't think it was a proper shot, until he kept losing to Nadal. He then adopted it and it helped him win the French Open in 2009. Moral is, the drop goal is just another string to the bow to change things up and keep that scoreboard ticking over.
Have yet to see Foley drop goal yet, but surely something he would have been practising in training.
The bench: When do each side bring their bench on for tiring bodies? In terms of strength, I think NZ do edge this. It's clear NMS is likely to come off in the second half and Barrett comes on at full back and Ben Smith shifts to right wing. This gives ABs a second kicking option and playmaker in Barrett, as well as Carter. SBW can also come on for either Conrad Smith, with Nonu shifting to outside centre or a straight swap for Nonu.
I wonder if ABs feel they are losing the breakdown battle, whether they bring on Vito or Cane to help out McCaw.
Mealamu offer massive experience at hooker and Crockett and Faumauina's ball carrying will be massive against tiring Wallabies.
For the Wallabies I was impressed with Polota-Nau's impact in the ball carrying stakes for the Wallabies against the Pumas, but his line out throwing is a bit erratic. Can't comment too much on the Wallabies prop cover, as not watched Holmes/Toby Smith closely and Slipper has not been on form for the Wallabies for a while in the scrum or the loose.
Mumm should cover lock and 6, whilst McCalman covers 8. McCalman's defence when he came on against Wales was impressive, but again not too sure either will have the impact off of the bench that Vito and Cane can have. I think Wallabies may rue not picking White over Phipps, who I have not been overly impressed with. White scored a long range penalty agains the ABs in Sydney earlier this year, and his try sealed the game. Toomua and Beale are likely to cover the 22 and 23 shirts; Beale was excellent when he came on v England on the wing, but not too impressive when he came on against the Pumas at 12; I don't rate him as an international inside centre.
Experience: The ABs have this over the Wallabies; I think ABs starting 15 v SA was in the high 900s, whilst Wallabies 15 v Pumas was in the 700s. Experience of a RWC final definitely favours the ABs, with at least 10 of the 23 having played in the last final. Only Matt Giteau has experience of a RWC final, back in 2003 and he was a sub on that day and even then only came on temporally to replace Stephen Larkham as a blood replacement.
The referee Mr Nigel Owens and how he refs the breakdown, scrums will be crucial. With Garces and Barnes helping him out. Some say he favours the ABs and I'm sure someone on here will dig out the stats comparing the matches he reffed the ABs and they won compared to when he refereed the Wallabies.
Anyway, that's my 2 cents worth.