Defender

[Arcon]

Firstly: You don't even need agressor inside abyssea.

You mean, don't need it outside of Abyssea, at least not for accuracy. Inside of Abyssea, even with all the buffs, is the only place where there's mobs who still demand some accuracy at least. With proper gear you won't need it on most of it, but it's a nice bonus for those certain situations.

But especially with all those buffs you can't underestimate a WAR's evasion, not on NMs, but other mobs. Having evasion reduced helps with Retaliation. So if you really wanna do damage, without regard for taking any (which currently encompasses 90% or so of my WAR activities, both in- and outside of Abyssea), this helps nicely with generating TP. I have a 40% evasion rate against dynamis mobs, with Aggressor I can floor it. And not only will this give more TP to use while under Berserk, but it will increase Retaliation damage too.

Secondly: If you don't have the skill to hit two different macros at two different times then quit the game and go play Hello Kitty online.

That's not skill, that's ill planning (or being slept/stunned/amnesiad while you were using your other JAs). And why would I play Hello Kitty online? Crafting is even more annoying there.

Thirdly: The damage you gain by having berserk up for longer (or rather not having berserk for shorter) outweighs the effects of stacking it with every other job ability you have.

Got proof for that? Enhancing a higher value by the same percentage as a lower value yields exponentially greater results, which make up for the ~17% increase in relative duration (which is not a 17% increase in the actual effect, since some of it will be out of sync with the other effects, which would profit from it).

Unmerited Berserk:
0.6*1.25 + 0.4 = 0.15 = 15% overall increase
Fully merited Berserk:
0.6*1.25 + 0.23 + 0.17*1.25 = 0.1925 = ~19% overall increase

So you just gain a 4% overall difference, meaning even at 800 Attack, would only net you an additional ~30 Attack, averaged over time. But occasionally, you will have a lot less attack on the abilities and weapon skills that matter, WSs loaded with Warcry or Blood Rage, self-skillchaining with Sekkanoki and closing with a Warrior's Charge WS. That alone would probably be enough to make up for the entire 4% Attack increase, not to mention Warcry and Blood Rage last enough to get several WS in.

You're also using Sekkanoki wrong.

You don't know how I'm using it and I'm fairly certain I use it correctly.

[SNK]

Defender really doesn't need to be adjusted... It's decent as it is..

[Crazze]

So you just gain a 4% overall difference, meaning even at 800 Attack, would only net you an additional ~30 Attack, averaged over time. But occasionally, you will have a lot less attack on the abilities and weapon skills that matter, WSs loaded with Warcry or Blood Rage, self-skillchaining with Sekkanoki and closing with a Warrior's Charge WS. That alone would probably be enough to make up for the entire 4% Attack increase, not to mention Warcry and Blood Rage last enough to get several WS in.

If you are using Warrior's Charge for WS's then I am actually fairly sure you don't know what you are doing. Warrior's Charge gives better damage output if used to gain tp faster to do an additional WS not using it during a WS and getting a few extra damage from it.

[Arcon]

Using Warrior's Charge alone with the inherent JA delay will prevent you from doing an extra swing with a little haste (gear cap + spell is probably enough), losing one hit to (maybe) gain another. Remember that a good WAR has almost 30% Double Attack rate in their TP set anyway, which makes it useful only in 70% of all cases, the rest of the time you're just wasting it.

Theoretically, this would also apply to WS, but with Warrior's Charge up, you can ignore DA equip for WS and focus on ATT/STR. I doubt you'd change your melee gear mid TPing just cause WC is up.

[..] and getting a few extra damage from it.

You can get over 3k damage from it on WS, and on average you prolly get over 1k inside Abyssea.

You say I don't know what I'm doing, math says you don't know what you're doing. And if you get owned by math, better not flame about others.