Inqis don't have a slight advantage over other classes..they have a massive advantage..
They have a very good stealth, better CC's than most if not all other classes, their knockback is superior to all other classes and their DPS is also very impressive. Inquisitors can play multiple roles(Either Healer/DPS or Tank/DPS) and have lots of versatility and yet can still out DPS pure DPS classes such as the Sniper.
To balance PvP, Bioware need to: Reduce length of all CC's for all classes, improve damage and surviveability for Melee tanks, reduce AOE damage of Troopers/BH and reduce damage from Inquisitors/Consulars.
I dont understand this though ? as a sin I have 3 forms of CC at the moment.
Whirlwind which has a long cast and can be interupted so if im in melee I totally will not be using that as I would get murdered standing in melee trying to cast a CC.
My electric shock thing which breaks on dmg fairly long CD (this is my most effective CC imo as a sin)
Force slow again long cast time (again can be interupted) and well it just slows ppl down useless as a sin because why would I want to slow movement speed when I am already in their grill to kill them.
Mind tap, can only be used if target is not in combat and breaks on dmg. (Sap for the WoWers

)
Ok I then have a knockback the ground slam thing. But I would hardly call that a CC and again id rather have ppl in my melee range to hit them not knock them away.
I will note that my sin is only lvl 30 but from what I can see I dont get anymore kind of stuns or pushbacks. So as a sin am I really that OP ? I have one CC I can effectivily use while in melee as the rest have cast times.
I would prob agree that my dmg is higher than most but is that reason enough to nerf the dmg completely. The only way I get by in warzones is picking and choosing my targets go in and try kill hope I do not get over-run by backup then pull back out and do the same. If I just run into a fight I will die very quickly. So I do not see the problem.
The whole assassin role is exactly how I play it. I pick and choose fights I time fights well. Assassins will always get murdered if they just run blindly into a fight.
I don't know much about the other classes at higher lvl. So I do not know how many CC's other classes have.
But from my pov. Sins are not that bad (maybe a bit high on the dmg side but then drop like a rocket if they get focused or cannot get in the first few blows) Sorc's on the other hand yea I agree fully because they stay at range they can make full use of the above CC's I meantion and that is prob far to much.
But inq sins are not a huge problem imo.