In principal I would not pick a tournament team which includes:
(1) A player who never started a game (I.e. Barrett)
(2) A player out of position (I.e. Retalick at 5, or Hieneken's choice of Messam at 7)
So my team (much the same as stormer2010's) would be:
1 Ayerza
2 BDP (Massive hit of DC clinched it for me

)
3 Figallo
4 Etzebeth/Retallick agree that both deserve this spot equally
5 Whitelock (best lock in the comp)
6 Messam (had his best season yet and was a rock for the ABs)
7 Hooper (very tempted to say McCaw though)
8 Read (best player in the world)
9 Aaron Smith
10 Cruden (best of the starters and still rates higher than Barrett for me)
11 Savea
12 JdV (Class act of the tournament)
13 Conrad Smith (2nd best player in the world)
14 Ben Smith (player of the RC)
15 Folau