Some classes have certain skills that just blatantly overpower certain classes while not doing much to others. I know class disparity, unique mechanics, etc etc is not a bad thing but I don't think classes should have skills that make them ridiculous to fight for specific classes. I'm sure I'll miss some, but some examples of what I'm talking about:
This aff is just odd really. The normal effect of it is usually just spammed away, the real killer is when it procs something like secrets. Against classes like Monks and Templars (who have to send a huge block of commands for each attack - Monks have the "combo" command but stupidity still treats each kick/punch as its own chance to proc) stupidity becomes infinitely better than against a class that only has to do a single command to attack.
As a Mentis user with access to this, I have to say this aff is way too much. It doubles equilibrium time - killer against eq using classes. The balance counterpart, lethargy, only increases balance time by 1 second I think; doesn't really make sense for confusion to double the time. IMO it should be put on par with lethargy so it retains its original use but without being so damn ridiculous. Vampire vs vampire fights usually devolve into who gets confusion to stick first, cause at that point confusion just completely annihilates your offense. It also makes vampires very hard to fight for eq using classes.
This skill has a chance to deliver a counterstrike and a venom when you hit the Templar. Aside from boosting their already crazy aff rate, this skill just absolutely shuts down any combo class. Tekura user? Your kick lands, they main gauche paralysis, you don't get to punch. Vampire classes as well; slash with weapon, main gauche gives you paralysis, you're unable to follow up with your whispers. (I think) It's bypassed by paralysis, which gives vampires the ability to just slash with curare every time to avoid this skill, but that's a pretty hefty nerf to Praenomen considering you will overlap with the ghast. Other combo classes who don't deliver venoms don't get that luxury. It is possible to follow up with the rest of the combo once paralysis cures but that still introduces a pretty significant slowdown to classes who rely on combo attacks, especially if you are off herb balance when it hits (which is almost certain, Templars already aff like mad).
Ahh, my beloved Astralblur. I love this skill and it's an amazing luxury for me, but it completely shuts down a kill route for Mentis users/Lumifairies while not doing much against anyone else. Wisp Bloodshield is similarly annoying as it procs like crazy against a weapon user while doing nothing against other classes.
Passive/Active Curing/Aff Shrugging
This is a big peeve of mine. Why do classes need additional curing/aff ignoring beyond the standard? It makes balancing aff classes ridiculously harder since they might be OP against a class without additional curing while unable to make progress against a class with additional curing. Some classes basically have an extra tree tattoo that cannot be disabled, making it ridiculous for aff classes to make any progress at all on them. Active curing has the tradeoff of taking up your offense to perform it, but it's still crazy against classes that rely on affs. I can trigger purify blood to activate every time a Templar vorpals me and suddenly it becomes infinitely harder for them to kill me as opposed to a class without extra curing. Passive curing is just...ugh. Double parry was essentially removed because it shut down salve classes, passive curing IMO is pretty much the same thing for aff classes.
Those are the ones I can think of right now. I'd like to ask everyone to please be as unbiased as possible when discussing - you may notice most of these are actually nerfs to stuff -I- use, because I have the most experience fighting in my classes. Also to provide more instances because I am sure there are many I haven't thought of/experienced.
I think eliminating these specific imbalances would go a long way to making PvP more enjoyable/balanced all around. I don't want to have to switch to a salve damaging class just to fight Luminaries because of their passive curing, I'm sure people don't want to have to switch to a balance using class just to fight me because of confusion. While complete balance is obviously impossible, balancing should still aim to make each class equally effective against every other class. As is, some classes have specific tools that just make them unbalanced against certain classes.