This is a more general comment about defenders, but I find it interesting the way defenders are chosen. There seems to be 2 main type, rebounding defenders (JJ, Hunt, Yeo), or marking defenders (Howe, Laird, Rance).
A skill that appears to have been overlooked in importance, is being accountable to a man. A few (like Rance), defend a man and do their "AA skill" amazingly, and are usually the ones picked. It might not be as important now defence is largely a zone concept, but I feel like there are players out there who are amazingly consistent at the one skill nobody ever seems to care about.
But it can also lead to some massive over rating of defenders. For example, I remember Oxley taking about a bazillion marks against us one game. Problem was he isn't an accountable defender, so is now in the Magoos. But that kid was the next coming after that game.