Sharpe and Hocking are the only real locks.
Wykes should be a 6 at the Super level. He is too skinny and not physical enough to be be a starting lock though he has done so. He is a skilful player and his best role would be as a 6 who could switch to lock for part of the game or to cover 6/lock on the bench.
Likewise Stanford should also be a 6 at the Super level. He isn't tough enough to make a difference in the tight stuff or rather, he has never shown it to me.
Luke Jones is on tour with the Oz schools team. At the schools level he is like a Hugh McMeniman but don't look for him to play lock in the S14 in 2010. He needs at least one year of gym work, and better two before he can mix it on the veldt. One thing in his favour is that he is as hard as nails.
I expect big things from Luke in a couple of years time, but talk is cheap.