two rock solid tanks, and a good healer is what i saw. hunter dps was decent, i think your mage is letting personal angst against get in the way of his spec
theres far more knowledgeable people on mages than me here:
I thought arcane was superior until you hit late ICC25 gear? When you're rocking T10 and icc crap, I know fire is better, but when you have a 5200-5400 gearscore, isn't arcane still tops?
Just in general, i know itemization of gear with crit/haste plays into that. My mage is all haste gear, so I figure he'll be much better off with arcane.