Hmm tough one. Think Hodge could average slightly more but Birchall is less likely to be rested. Hodge's scores will be more consistent though.
Hodge.
Cheers guys. Both will average around 90-95 IMO, but I'm leaning to Hodge.
Some interesting reading below:
Hodge (bar 2012) has never averaged less than 91 since 2005.
Birchall 36 games in 2013-14, Hodge 39 games.
http://tooserious.net/Player.aspx?id=291&name=Luke Hodge
http://tooserious.net/Player.aspx?id=186&name=Grant Birchall