I admit my damage was OP when I could do 1k shock - 800 exo - 300 judge, but I feel fairly balanced after 3.1.1. I have 3282 HP atm (with PVP trinket on), and with the many rets giving Kings for super mana pool (and my 64 mp/5), I feel I should remove Gizlock in favor of Wall of the Dead to achieve 3382 HP.
10 stam > 10 int + 4 mp/5 now, only problem is I blew my money on enchants for Dragonscale shit and 12 stam on bracer, so gonna have to mine some more, or farm a lot of honor for gems. I'm also loving the new Aura Mastery, being able to cast safely in the vicinity of a mage without blowing my bubble is truly a blessing. I'm also getting the new Holy Shock glyph when I find one (BB FoL glyph).
In terms of other classes, I think we actually achieved a pretty good balance by now. Elemental Shamans can do some insane damage, but they are squish and OOM if they focus too much on SP, so I guess it's fair. I thought Arms would be totally OP, but I just make sure to use HoJ on them whether it's group or 1v1, so they don't cause too much misery before they get nuked.
Edit: Armory seems to be bugged (doesn't calculate talents). With Wisdom only I now have 64 mp/5, 308 spell power, 3282 HP, 3900 mana, 42% armor (I use Conc Aura now) and around 15% holy crit.