I think you need to evaluate "powerfull" and "usefull"

for example, scramble bombers is overly powerfull, but i wouldnt call shear rediculous quantities of raw dps usefull.   (If the scrambled bombers get only one volley off before dieing  (which is practicly guarenteed), they have done more damage per antimatter than a guass rail gun blast... by a factor of about 1.4 BEFORE phase missle upgrades.   WTF.)  (does not take into account armor modifiers, in which case, since bombers and cap ship abilities both do 75% damage vs capital ships... your right back at a 1.4 ratio... thats 2.8, if the bombers get 2 volleys off... and if the bombers survive to despawn, 11.2, which includes a ~10 second window of transit time before the bombers fire thier first salvo.)

A usefull ability, would be like the progens shield restore... i have no idea why that is not seriously up there on that list.

I am preety sure your list is built for single player i assume? cause donov's shield restore is, yes, amazing in single player, but much less usefull in multiplayer... unless you somehow manage to survive to mid-late game without your enemy also reaching this point.  at which point you already won.

as far as super abilities, i think your completly wrong.

Marza's Missile Barrage  (uber)

Kortul's Volatile Nanites  (I have instapopped advent battleballs with this.)

Akkan's Armistice  (not dieing = good... 3 of these = never endinggame)

Maurader's phasenode  (if you can get this, it is amazing.)

Radiance's Cleansing Brilliance 

Death egg's Planet Suck

Sova's Rapid Manufacturing

Donov's flux field

Progens' Resurrection

Rapture's Domination

Skirantra's Replicate Forces

Vulkoras's Disintegration   (never has the AM to use this when its needed (aka, almost dead))

Kol's  Finest Hour   (it takes 30 seconds to pay off the initial AM cost... )

Halcyon's Anima Tempest  (scramble bombers beats this easy)

Revelation's Provoke Hysteria  (this just plain sucks)

Mind you, I am slightly anti-advent biased.

Why isnt EMP Blast up there on top or Ion Bolt?!?!?!

How do you function as TEC without those?!?!

first thing missing that came to mind is shield restore on a progenitor.

vertigo is nice indeed (vengeance is useful with a radiance using animosity) just against strikecraft alone.

malice + cleansing brilliance is nice but hard to pull off in MP (much easier to get working in single player).

I never play TEC usually but I detest Armistice. Makes me want to smash things into my monitor screen. So it must be useful for the TEC player.

Hmmm....  if I were to rate them in the same style as you, these would be my choices:

Advent

1) Iconus Guardian's Repulsion
2) Halcyon's Telekinetic Push
3) Progenitor's Shield Restore (comboed with shield projection)
4) Rapture's Vertigo
5) Halcyon's Amplify Energy


Vasari
1) Subverter's Distortion Field
2) Skirantra's Scramble Bombers
3) Kortul's Jam Weapons
4) Skirantra's Repair Cloud
5) Jarrasul's Gravity Warhead


TEC
1) Akkan's Ion Bolt
2) Marza's Raze Planet
3) Kol's Flak Burst
4) Akkan's Colonize
5) Dunov's EMP


Overall:
1) Subverter's Distortion Field
2) Iconus Guardian's Repulsion
3) Skirantra's Scramble Bombers
4) Halcyon's Telekinetic Push
5) Progenitor's Shield Restore (comboed with shield projection)
6) Akkan's Ion Bolt
7) Kortul's Jam Weapons
8) Skirantra's Repair Cloud
9) Rapture's Vertigo
10) Jarrasul's Gravity Warhead


For Super Abilities:
1) Akkan's Armistice
2) Progenitor's Resurrection
3) Kol's Finest Hour
4) Marza's Missile Barrage
5) Jarrasul's Drain Planet
6) Dunov's Flux Field
7) Antorak's Phase Stabilization
8) Kortul's Volatile Nanites
9) Sova's Rapid Manufacturing
10) Halcyon's Anima Tempest

There is also this OP-edness of repulse in that a cap ship pushed by a repulse field loses his momentum. You can't escape a guy who chains repulses to prod your cap ship, your cap will not be able to move and get away. It's basically immobilized. Since it's the only non-cap ability that immobilize a cap ship, it's so powerful.

so is repulse actually disadvantageous when you're using destras against lrms?

also, how good is anima tempest? i notice much of a difference when i used it, didnt seem worth the antimatter

is amplify energy aura a better choice at level 7? the rate of fire bonus seems pretty small even at max level (22% i think)

also, what do you use vengeance for? i thought it would be useful against lrf focus fire and star bases, but i've never really tried it out because i saved antimatter for vertigo instead.

what's the point of deceptive illusion besides clearing mines? its easy to tell that its an illusion just by reading the infocard ("abilities disabled"), so...

TK push really? I don't think TK push is better at dealing with stirkecraft than Vengence. Especially when the strikecraft are targeting a starbase.

Also I would say overseer heal is best ability that Vasari have now. Distortion field is no longer a free ability. U can't lock down the enemy fleet so if you distort field in the middle of them, you will pretty much lose that overseer.

Let me try to formulate my own list here

TEC:
Missile Barrage
Raze Planet
Flak Burst
Akkans Colonize
Missile Batteries

Vasari:
Overseer Heal
Scramble Bombers
Egg Nanites
Egg Planet Suction
(Honestly these are the only ones I use/Need)

Advent:
Shield Bubble
Restore Shield
Mothership Colonize
Vengence
Meteor Storm