[Egregius]

Crystalline Armor 3 has 1 to 5 armor ratio (30 vs 150 damage taken) and a 30 damage reduction per hit per armor (15 channeled away, and 15 for shield hitpoints) for 70 minerals and 70 radioactives.

Organic Armor 3 has the same ratio and size for the cost of 130 organics, and it regenerates 30 hitpoints per turn per armor.
Also it heals ships up after combat.

So what does it come down to? Enemy tactics. If I was fighting an enemy with organic armor, I'd make sure I'd focus all firepower or as much as possible on a single ship at a time, that's when the regeneration of OA doesn't do squat.

Question: will the enemy do that? Because if he does Crystalline armor would be better in that case.