The main consideration for you guys should be how long it takes a player to come on, a mid you take next year will be playing good footy more quickly than a tall you take this year.
A tall you take next year will take even longer - and Burton and Schache are still a fair way off the finished product, certainly McCartin was more advanced at the same stage.
I dunno, Burton was playing SANFL league football earlier this year as a bottom ager. Very rare for a kid to do that. Did well in the champs before illness. The query with Burton is height/role IMO, not runs on the board.