Okay, but why is that beneficial? Why doesn't your party have a healer that can keep up with healing? Of course, cures are great for hate control, but damage-dealing is great for hate control too, and has the additional advantage of speeding up the fight. /DNC isn't simply a much inferior DD sub compared to /WAR; it actually gives you less damage output than you'd have with no subjob at all, since you eat tp to cure.
You can have a one healer party who focuses on Haste, Dia, Regen, and occasionally pops a cure now and then. Let's assume that amazing mages can do all that while main-healing and they can make it seem easy, but hell I don't carry one of those in my back pocket. I specifically make it so that random mages have no excuse to let haste drop or not to start off with dia because they are resting. I submit that both those things being consistent and constant will improve kill speed markedly. When your mage stands up to dia at less than 100% mob health because they were taking a knee, you've lost a lot of DoT, potentially. If they never have to take a knee because you are self-sufficient and they have enough refresh to cover buff/debuff cycle, damage goes up.
/dnc increases the damage output of your ENTIRE front-line. You are mistaken that it does nothing to increase kill speed. On a typical monster you land at least 2 steps. That's one to start, one at 15 seconds later. You may get a 3rd off if your fights take longer than ~30 seconds, as well (and that's honestly more realistic at these levels).
Quickstep: First one is like giving +8ACC to your party, which means 4% higher hit rate, which is a pretty hefty increase to DoT right there. You could do the 2nd one and push that up by 4ACC again, or you can possibly get more effect by making your 2nd step be...
Boxstep: Lowers enemy defense by 5%. Since people usually WS toward the 2nd half of the mob's life, this is a perfect preceding debuff. On Greater Colibri, they have DEF of 330 or so. Unfortunately I don't have stats for regular Colibri, but 5% of 330 is about 17. So now you have given your party 8ACC 17ATK (less ATK for the lower level ones, but you get the idea). These debuffs last for 1min and the 2nd can be applied 15 seconds after the first. If the fight takes longer than 30 seconds, you can add another 4ACC buff to the front line (you should generally use alternating steps), at least after level 60. Before 60 you just do multiple Quicksteps and keep stacking the ACC bonus instead (which is still fantastic).
My point: that's your whole melee front-line getting buffed!
/DNC... actually gives you less damage output than you'd have with no subjob at all, since you eat tp to cure.
Ridiculous on a number of levels. Here's why:
1) If colibri is the target, you never WS as /war (or almost never) because they steal TP.
2) Regardless of colibri or not colibri, nobody makes you "eat TP" just because you are /dnc
. You get the choice. Ask yourself, "Am I taking too much damage?" Yes: spin some TP out and save your mage some MP if you want. No: store TP and blow it on WS if you want. Note both options are your choice.
3) Due to /dnc Samba effect, you and your mages need cure less HP over time. And after 60, due to /dnc ACC bonus, you are getting TP faster. What does putting these together do? It means it's even easier and safer to WS as /dnc than as /war... But then again (of course), /war doesn't have the choice to do anything else. That sucks. Even before 60, the effect of Quickstep alone is enough to raise your TP gain, and everyone else's (!!).
4) Defender is crap. Perma-berserk is... pretty foolish in most cases. That means /war is offering you a big fat DA bonus, ATK bonus of 10, and a few meaningless points of STR. It should deal more damage then, right? No, because remember what I said earlier: you have given your party 8ACC 17ATK (minus whatever due to lower level targets). And after 60 there's a 10(!) ACC bonus for you personally. I therefore submit you will deal MORE damage /dnc than /war, and more importantly: so will your whole party
5) All these benefits are yours, and in addition you are take less MP to support while offering greater benefits to both front and back line (debuffs and MP savings, respectively).
/war is /fail in comparison. The only exception being: You are in a party where you can leave berserk up, such as with a PL. Then /dnc is not going to keep up.
Anyway, as long as you aren't a stupid /dnc player who sits on TP, you're going to do more for your party with that sub than with the benefits that any other sub can offer at these levels (in typical parties).
Don't believe me? PARSE it. Seriously, go change subs and level sync for an hour and parse it. Then change again and repeat for another hour. I already have and I already know which works better (and why). Now you try...
To the other posters:
As far as the pizza vs sushi thing that the other poster brought up, I agree pizza is the way to go. I only mentioned sushi specifically because the OP was talking Wajaom, and so I therefore assume the target is birds. Pizza is difficult to recommend there.
As far as the /dnc 'voke thing goes. The provoke is 5/6 of a regular provoke. If that isn't good enough for you to hold hate along with flash and your other tools, then /war isn't going to do a damn thing to help you. If you are really bothered by the 5/6 thing, spectral jig coincidentally happens to produce the remaining 1/6, is instant, costs 0TP, and can be used every 30 seconds just like Animated Flourish can (/dnc 'voke). The provoke argument is an argument of ignorance. /dnc higher rate of cures is going to equate to more hate held than /war's lack of cures. Yes, you hold hate better, not worse. You hold hate better.
DEF/VIT argument: It's silly and with /dnc it's a total moot point anyway since you have an endless well-spring of cures to draw from. Go all-out DD gear and raise DoT in this manner. I'm talking Sentinel Shield, the works. Just rock as much DD gear as you can and put out the highest DoT possible. It's best for your hate-holding and your EXP/HR, which is really the bottom line. That said, certainly you should macro in enmity for Flash, cures, 'vokes, etc. If you don't want to blink, there are options in non-blink slots so there's really no excuse on this one. The pointlessness of worrying about DEF is why we don't list /war Defense Bonus as an advantage to that sub, just as /dnc Evasion Bonus is not listed as an advantage either. The only defensive boost that the two of them give which matters is /dnc Subtle Blow, and only if it's enough to make enough of a difference that you take less TP moves over time. That's too fine a hair to cut and so even though I support the sub, I prefer to leave that particular claim out.
I keep getting rated down and that's unfortunate since the information is both important and correct.