I would say that only really Sharpe and Horwill were in front of them and Sharpes gone now and Big Kev's been injured for ever. Who would you put in front of them ? I think it's really anyone's game and in the first 2 weeks the brumbies lineout and scrum beat the reds and smashed the rebels (I know they are not solely responsible for that but..)
I think Carter should be in with a massive shout to partner Horwill for the Lions, if his back playing well (Horwill that is).
Who'd be ahead of the Brumbies locks currently? Whilst the 2 of them make a terrific unit as individuals I'd say only Luke Jones and Kane Douglas have better form.
However, but the Wallabies understandably select using other factors too like experience, specific skill-set etc. For example, Timani is a very specific 2nd rower and I personally don't love what he brings to the table but I can see why he would be picked.
If I was to sit here and conservatively/realistically pick 5 Wallaby 2nd rowers they would be (in no particular order) Simmons, Horwill (presuming he's uninjured), Timani, Douglas, and MMM. Now I don't rate all those players on current form but any logical person can at least understand the thought process behind picking them.
You keep quoting the Brumbies 2nd rower's lineout prowess but the reality is Carter is a wallflower around the field (despite having plenty of potential) and Fardy is more of a lock/2nd row type player that Robby already has more than a handful of.