Brumby Runner
Jason Little (69)
We'd have to be nuts to discard Simmons for Carter at this stage.
I think there is only a split hair between them. They play very similar games, and a lot of their work goes unnoticed. They are both very good lineout operators with Rob having the extra string to his bow in calling them. I do think Carter has more impact and is more effective in disrupting mauls. Neither are great at bending the line with ball in hand, but both can occasionally make good breaks and both have scored tries by backing up others who break the line.
They both have high workloads which is where their value to the team is often overlooked. As far as statistics go, I think you'll find that Carter hits more rucks, is more effective and makes more tackles than Simmons as a rule. (Forcefield might be able to verify or correct this).
They both give away unnecessary penalties, and that seems to have increased for Sam since Cheika apparently has indicated he wants more aggression from his locks.
Not a lot between them imo and both should be in the RWC squad with one starting and one as backup either on the bench or as injury cover.