[quote=Kalrakh]If they would split damage between armor and vitality, either it would be even harder to get them ccable or they would die before you even get to CC them, making CC even more pointless.[/quote]
That is why I was proposing that lesser effects be given when the target still has armor. That way you can still open up a fight with CC, but it's not going to be as effective as it otherwise might be if they had no armor to resist it's effects in the first place. This, along with normal attacks damaging armor would allow you to weaken the enemy at the start, wear down their defenses, and then be able to get some of them with a hard CC which could lead to the end of the fight. In order for that to function smoothly, there might have to be an implied debilitation added when armor is initially broken that delays it's recovery. Something like a stagger effect that prevents the player or NPC from regenerating their armor immediately on the next turn, which will help capitalize the significance of HP, and CON.