Hmm... AA's I'd love to see:
General:
Reduce Recast Timer (Ancient Ancestrial Calling, Malos, maybe even make Pure Spirit (unlikely) more useful) I'd really love this if it worked on AA's as well (dreaming I know)
I like the idea of a quick reset AA that does what the BP from anguish does It'd be nice to have for those of us still waiting in line to get their bp. Heck if that were an AA I'd go with the Demiplane BP.
Hastened MGB (Would be awesome since we cast more(quantity) useful spells then enchanters)
Increase our mana regen cap (all classes) ATM I'm like 33 regen only get to use 23 of it kind of annoying
Here's a fun one permanent Faerun (for us barb shammys) (Make see invis, Eternal Breath prereq's for this one) I've noticed a distinct lack of High Quality Drops with Faerun (been thinking when I replace my current items I'll have to get a type 7 aug with it.)
I love the 100 levels of 2hp + 1mp/1hp+2mp idea except they couldn't cost much 2 AA's max a level = 400 AA gross though if they costed more then 1 AA I'd wait till I'm done with pretty much every AA (minus first Aid, Crafting AA's, etc.) if it were like 10 hp +5mp/5hp +10 mp then 3 AA's a piece would be something I'd spend.
Spell Shielding/DoT Shielding AA's
More buff slots or I'd pay for 3 debuff slots (it'd be nice for them to have their own place to go)
10th 11th spell gem if your planning on adding more useful spells (that Group heal is permantly loaded on raids so I'm down a slot.)
Utility:
Improved VP (Chromatic - mainly to land on those that can be rooted and decrease breaks of the roots) Heck while I'm at it... Why not add a Silence to our Root that way the casters can't cast while rooted (can't dispell/debuff root)
Reduce the Recast Timer on VP (get it down to 45 sec. this would seriously help us be considered CC)
I'd like a AA that lowered the recast time of Resplandant cure to around 45 sec.
Improving our Ancestrial Aid (reducing cast timer/increasing heal across the board on this line of AA's)
I'd pay some AA's to make the Wards/Idols Immune to all attacks (idol seems to be) and No personal Aggro. (As it stands I've not seen a ward cast except after a wipe.)
Survivablility:
I'd love an Priest AA that made you UNSUMMONABLE so you get that critical heal in on someone and you resist their summons. This would be useful to all priest classes. I'd love to see the higher level of it where when you resist their summons you drop off their aggro list personal mem blur.
How about an AA to resist Silence/Stun (5% chance, 10%, 25% chance) It seems many of the Mobs I've encountered do seem to be resistant/immune to stun pretty sure their resistant/immune to silence also.
I'd love to be able to silence mobs like they can silence us (Blind if it lands does wierd stuff and they can still hit you with spells). Passive AA that when we cast a Debuff/DoT has a % chance of Silencing the mob (would be kinda cool) or Just a straight Cromatic Targeted (AE?) silence -1000 resist (like many mobs have) -500 hate reduction... Call it our Hate reduction AA
I love the Reduced Aggro but if it's an AA then it should hit all mobs in a Radius then upgrades to targetable radius.
I'd love an Item/AA whatever with DA/Harmshield (Doing Hatchet you'll understand)
Spell casting deftness (like wizzys/mages/enchanters about time we get this one - more a raiders need the regular it's just I find myself group healer more often then not and it'd be nice to be a little less noticed for my heals)
Pet:
When mob goes enraged pet auto holds (making it return to it's position [follow/Guard])
Pet No Push (makes the pets attacks kicks/bashes/spells not push the mob in any way also affects Swarm Pets) Make this a toggle AA like Suspend Minion (I'd probably keep mine on All the Time).
I'd pay a few AA's to make my pet more resistant to stuff call it Patron Resistance (whatever your (base+gear) resistances are at time of cast is applied to pet unless pet has higher resistances.
I think that pretty much covers it.