Ok, watched most of it and ha! finally I know why the Crossbow in the Academy selection screen looks so different. I always wondered.
Kilrathi ships in armada were pretty equivalent, I think? The Jrathek in academy was a sexy ship, but the guns were kind of awful.
As I wrote, I have maybe played 3 or 4 games of Armada against a human pilot (and most of them in a Jrathek or Shok'lar) but my comparison of the stats show to me that Kilrathi ships are slower, less agile, less well armed and for most part more expensive to build (the last one is especially insulting I think) than their Terran counterparts. They tend to have better armour...but mostly on the sides, wohoo.
Dralthi vs Arrow: The Dralthi is significantly slower, is less agile, has weaker shields, weaker guns and slower shield regeneration. It has better side protection but the Arrow also has better weapon placement.
Shok'lar vs Phantom is no contest, the Shok'lar is that much better.
Jrathek vs Wraith: There's a difference in afterburner speed between the two but I do not remember who has the advantage. The Wraith has heavier guns, significantly more missiles and chaff pods and better protection. The Jrathek has good center guns with optimal placement and is more agile (and looks that much better)
Kor-larh vs Gladius: the Kor-larh is significantly slower, less agile and its guns are extremely short ranged but only a bit more powerful that the Gladius. It also has much less missiles.
Goran vs Banshee: the Goran is slower and less agile. It does have significantly better front protection but also a very puny gun loadout with less firepower than the Jrathek (though better missiles).
I heard from Chris Reid that the Goran really is a beast and mabye it is superior in a 1 on 1 match, I can't tell.