I suppose I could offer you help with this if you like.
Just to get a start, you may want to note how costumes alter the setting AFTER difficulty does. Maybe explain how it all works, but I suppose that's too much work. At any rate, even I can't give you exact percentiles all of the time with some titles not telling you a number of things even in the guides, but this is what I can offer:
CoO
Spud of War
Power: 100%
Armor: 400%
HP: 200%
MP: Infinite
EXP: 100%
McKratos
Power: 400%
Armor: 50%?
HP: 50%
MP: 50-100% *?*
EXP: 100%
Mime of War
Power: 100%
Armor: 100%
HP: 200-300%
MP: 100-300% *?*
EXP: 400%
Those with question marks are uncertain and with asterisks, I never finished testing them. Even with dificulty settings on that game, I had to do testing thanks to the guide not giving me even that much.
GoW1
I don't have the copypasta readily available nor even the guide before me, so I'll just glance at your coverage. *does so*
You should be more specific about "Damage Reduction". Ares Armor is a simple case because it is a vanilla 200 (all stats are as such). The 'great reduction in strength and defense' is vague and incorrect. Tycoonius has 2x damage (200%), but comes paired with 25% Armor (4x damage taken). *would have had 200/100 collisions on VH if you could use him there*
NOTE: You might also tell the player that on GoW1 and GoWII, low Armor means high collision damage. Not that I expect many to know what the Hell that means. There are cases where Power % doesn't affect attacks and Armor % doesn't make foe attacks hurt us more. But that's outside the scope of this effort, I take it.
NOTE2: If I feel like it, I might search out old copypasta of mine about the exact values for all of them (on Normal as you prefer them).
GoS
God Armor
Power: 200%
Armor: 200%
HP: 100%
MP: 100%
EXP: 100%
Pro - EXP orbs with each hit, 2x fire regen?
Con - N/A
-
Deimos
Power: 50%
Armor: 50%
HP: 100%
MP: 100%
EXP: 100%
Pro - Magic price reduced to 25%, 200% Power with AoS?
Con - N/A
-
Robotos
Power: 50%
Armor: 100%
HP: 100%
MP: 100%
EXP: 100%
Pro - MP orb drops with each hit, Extended Combo Meter reset time
Con - Magic costs 2x more per cast
-
Legionnaire Kratos
Power: 100%?
Armor: 400%?
HP: 200%?
MP: 200%?
EXP: 200%?
Pro - Magic price reduced to 50%, 200% AoS damage
Con - N/A
-
Ghost of Sparta
Power: 100%
Armor: 50%
HP: 100%
MP: 100%
EXP: 100%
Pro - HP orb per hit, 4x fire regen
Con - N/A
-
Gravedigger
Power: N/A
Armor: 100%
HP: 100%
MP: N/A
EXP: 100%
Pro - When at 0HP, you return to 200HP and nuke the screen for instant kills. New moveset. Also, taunts assigned to d-pad. Does not need to use grabs to finish off any foe. Cannot be grabbed, petrified, etc.
Con - Not usable outside arena, cannot grab
GoWII
DO is noted as 500% EXP. Athena's "massive" increase is 500%. The Armor is at 66%. Hercules Power % is 150. GK's increase in EXP is to 500%. Power and Armor are at 50%. HP, MP and RP are at 25%.
GoWIII
Don't represent Apollo's damage reduction in a way opposite of the rest of your listings. Notice the wording. 50% less damage taken versus saying 200% Armor. You do this with a few others. At any rate, he's a nerf tank. I cannot, regrettably, correct everything aobut the Deimos listing, but I can tell you it is not 100% EXP loss. It is very low, but you still get EXP worth from collection of orbs (just takes a great deal of them to reach even 1 unit). Be it 1% or something lower, it is not 0%. That's worth clarifying. Obviously EXP bonuses are not altered by this as they are not 'orbs' (you just get a flat rate).
