I agree with squirt on clerics having more freedom with manipulating their light. The current spells for war clerics should act more like a base which a cleric can mess around with once they're in the higher tiers, as opposed to removing and adding spells.
Just an idea, if war cleric magic is unstable and chaotic, wouldn't it make sense to have spells that released the energy like the palm of light spell as opposed to shaping and creating objects out of it?