I don't see any use in listing armor values corrected by a -armor proc like Executioner.

If you want to add a valuable list, show the base values and the average "debuffed" value of the mobs, but don't include stuff like procs or equipment that are quite different from player to player. Your values make it harder for every player NOT using Executioner to get working numbers.

Anyway thanks for the time you invested in compiling the list.

I like the list with executioner, especially because you see directly your ArP-Cap for each boss. And I think no meleeclass can get any better weaponenchant than executioner (at least on one weapon)

Unfortunately wrong. Only warriors and shamans profit unconditionally from Executioner.
For most Rogues dual Mongoose is clearly better than Executioner + Mongoose (due to the fact that we get AP & Crit from Agility).

This, as well as poisons and rupture being a big part of a rogue's output, and armor has no sway on either.

I don't suppose anyone would happen to have any data on armor values for bosses not on the list? In particular, I'd love to get armor values for Gruul, Magtheridon, Illidan, and of course any Sunwell bosses.

Brutallus: 7685
Felmyst: ~6200

Those numbers are based on my own testing; the Brutallus numbers are confirmed by this post and this post. I'm not aware of external confirmation of Felmyst's armor, but I'm fairly confident in that number, myself.

I haven't done any testing, but guessing from the numbers I see during the fights, both Felmyst and the Eredar Twins definitely have less than 7700 armor. So it's very very probable that they've got 6200 armor. Anyways, I'm going to kick them in the face the next time we raid (likely not before sunday), just to be sure :P

I think I have values for all Sunwell bosses at home; I'll check once I get home from work later tonight.
I might have forgotten to save the Eredar twins armor though, we'll see.

From what ive been reading it seems brutallus has some rather high amount of armor, I havent spend enough time on him to conclude for myself but I do have a quick question for the people who have been able to get some more time on him.

On the brutallus encounter specificly, assuming he has high base armor, is it still worth stacking a good amount of armor ignore or have there been better results with higher crit / AP values and not bothering with the armor ignore?

Having problems with the spreadsheet atm so im just trying to find out if people have been trying different gear sets.

Please read the third post above you.

I stand corrected :P

Using the formula of DamageReduction% = Armor / (Armor + (467.5 * AttackerLevel - 22167.5) For level 70's it becomes DR% = Armor / (Armor + 10557.5).

Listed is the skill/skill's, followed by their armor reduction effect, the bosses/mobs new Effective Armor with the armor reduction, the boss/mobs new DR%, and lastly the Damage% increase over 0 penetration effects or stats.

Base Boss/Mob DR%: 6200 37.0% : 00.0% 7700 42.2% : 00.0%
FaerieFire-600Armor= 5600 34.7% : 03.6% 7100 40.2% : 03.4%
Curse of Reck = 800 = 5400 33.8% : 05.0% 6900 39.5% : 04.7%
FaerieFire+COR-1400= 4800 31.3% : 09.0% 6300 37.4% : 08.3%
SunderArmorx5 =2600=3600 25.4% : 18.4% 5100 32.6% : 16.6%
SAx5+FaerieFire=3200=3000 22.1% : 23.6% 4500 29.9% : 21.2%
SunderAx5+COR=3400=2800 21.0% : 25.4% 4300 28.9% : 23.0%
All Target Debuffs=4000=2200 17.2% : 31.4% 3700 26.0% : 28.0%

Math for Additional ARP effects:

All+100 4100 16.6% : 32.3% 25.4% : 29.0%
All+200 4200 15.9% : 33.4% 24.9% : 29.9%
All+300 4300 15.3% : 34.4% 24.4% : 30.7%
All+400 4400 14.6% : 35.5% 23.8% : 31.8%
All+500 4500 13.9% : 36.6% 23.3% : 32.7%
All+600 4600 13.2% : 37.7% 22.7% : 33.7%
All+700 4700 12.4% : 39.0% 22.1% : 34.7%
All+800 4800 11.7% : 40.1% 21.5% : 35.8%
All+900 4900 11.0% : 41.2% 21.0% : 36.6%
All+1000 5000 10.2% : 42.5% 20.4% : 37.7%
All+1100 5100 9.4% : 43.8% 19.8% : 38.7%
All+1200 5200 8.7% : 44.9% 19.1% : 39.9%
All+1300 5300 7.9% : 46.1% 18.5% : 41.0%

Let me know if any of the math is wrong.

If your damage to the boss is being reduced by 37%, then you are dealing 63% of your unmitigated damage. If it is being reduced by 25.4%, then you are dealing 74.6% of your unmitigated damage. Going from 63% to 74.6% is a ~18.4% increase in damage output.

Could someone who's tested armor on the twins confirm that they have the same AV? I haven't seen phase 2 yet so I've never hit Sacrolash.

Can some one pls type here armor values of Kalegos and Eredar Twins?

Does anyone have armor values for Gruul's Lair and Mag?

Now that we can talk about twins: They have ~6200 armor. I haven't had the opportunity to test Kalecgos.

Added that info to the post; also I remembered to test Kalecgos this week: both Kalecgos and Sathrovarr have ~6200.

We can talk about M'uru now so I've added in the armor values for M'uru and his adds.

Does Entropus have the same value?

No idea, haven't seen phase 2 yet. My guess is that he has 7700 as well though.

Hmm, are the AV for the bosses pre BC known?^^
If there is a link it would be nice when someone would post it =)