I didn't read all posts but what I noticed is that you are getting points for the damage that is dealt close to you to some other people. Therefore if you stand close in the clusterfuck in giant gangbangs where shielders (because of survivablity) and guys with long weapons (because of better ability of supporting) spend most of the time, you will get a lot of points. You just have to stand close to people dying (those are like the assist points that you get) and you will collect a lot of points.
Also if an archer that is good in melee hits an enemy like 8 times before he finally kills him with his hand axe, archer will collect 1 point for every hit that deals any dmg. If archer couldn't hurt the enemy he wouldn't get any points for hitting him, if archer was dealing like 5 dmg with every hit, he would collect 1 point each time he hits.
The new valour system is punishing the cav and archers because they stand away from clusterfuck. Therefore as a Cav I had 7 kills and 18 points or something like that. Even if I kill some kind of good enemy that had an influence on the field of battle, I am not rewarded by more than a few points (2-4 or sth like that).
Bjord, you are wrong in your first post stating that shielders get points because of the shield. It's standing close to people dying which makes you get much more points. Just a while in a clusterfuck can make you get valour.