Again damage per AP isnt all there is to it and I do not concur ( honestly I dont even need Oath of Desecration I only started using it regularly this last playthrough its way overkill but 2850 points or more is sometimes good, I took down the Guardian in 3 rounds last time, when spells were doing nothing).

eh...

Too many variables to compute and how you play isnt a priority as long as you enjoy it its completely unimportant! But Death Punch isnt doing near the damage that my fighter is doing, you can improve the fighter and weapon but the spell only performs the same way it always does depending on the casters level, also its range sucks, thats a great way to get your squishy mage killed and Death Punch is not available or usuable until level 16, Whirlwind level 7, FLurry Level 10. That said I rely more on the fighter since he can soak damage and still keep killing. I do like the Death Punch spell its one of my favorites in the game actually, and far better than Storm, Hail attack, Meteorstrike and especially Earthquake. But a fighter can swing 3 or 4 times without a skill being in use and do 900+ points per strike to the same or multiple enemies in a round, no contest AP is irrelevant when you are the only thing left standing at the end of the fight.

Irrelevant- since Mass Disease is a status and therefore temporary and causes no permanent damage, also you get a save against it, you do not ever get a save vs weapons.

Divine-Light is the most worthless skill Warriors have except for Terror, I dont even use it, why would I waste any AP when the fighter will have killed the enemy by the time anything else will benefit from his de-buff.

Mages are just Artillery they dont win battles they just soften the enemy up buff the scoundrel and fighter and heal. Mages and Scoundrels have their uses but the fighter kills the most, especially the bosses since they usually have such great resistances vs spells.