If Berserkers are OP then Inquisitors are as well.

Inquisitors die relatively fast compare with Berzeks.And that's the balance (high dmg =squishi / low dmg = tanki).berzek(high dmg=tanki) no balance at all.

I have both a zerker and an Inquisitor and invisibility and their self heal more than makes up for their squishiness. I'm willing to admit that zerker may need some tweaks but I don't think it's as bad as people are making out. From what I've seen/heard Inquisitor only gets better whereas berserker begins to balance out.

The Inquisitor heals only if he kills a wounded enemy.Even if he kills a berz can 1 shoot him,if he tries to inv run a gunner can hit him and uncloak him.
Zercs on the other hand finishing blow (2867ap) consumes only 10 class points (compared to other classes is a verry high dmg) op
has a nice 50%krit chance buff buf this with finishing blow 1ko a higher hp enemy it's a good skill not op skill (that's if they lower finishing blow dmg)
has a speed buff (a better version of invisibility skill on Inq because Inq skill can be interuted with dmg) not op but it's better than an assasin skill tipe soo,it's a better version than Inq
has a lot of hp further on (so is like a semi tank with lots of dmg) Op
and the rest of dmg skills are ok (balanced dmg for his class)
Inquisitor: 160% rear dmg isn't much but its good so isnt op
eye of wolf only heals if u kill the enemy a good skill but not op
has a balanced hp compared to zerk
the other skills is ok not to much dmg

So tell me again why Inquisitor is geting better when Zercs not.From my point of view is vice-versa.

rebelkilla, what class you are? And level?
If you mention cap-level characters, then Ok. Now. You tell, that selfheal (and self-energy-restoration) is nothing, because inquisitor has to kill to restore. But isn't it his specialization? Even a regular inquisiotor can slaughter everyone on the point with wolf-buff, and thus limitless power attacks (if there are conditions, of course, but every class (even your scary berserker) need conditions to do its job (e.g. berserker needs enemies knocked down to land finishing blow)). Meanwhile, to restore his energy (not health), a berserker has to use punch, that can be easily blocked thus bringing no energy. And btw, berserker needs to lower his health down to inquisitor's to have speed equals to inquisiotor's and damage that exeeds inquisiotor's. Next, you have to have serious problem with your eyes if you can't see green light when berserker moves being invisible (while inquisitor's movement is recognized only by watching for environement (water, leaves, etc.)). Plus (you didn't mention, but it's important) dust interrupts with casting abilities faster and from longer distance then sucker punch.
So, I see a class that 1) is the fastest, 2) does lots of damage, 3) is ivisible, 4) is with AOE abilities, 5) is with CC abilities, 6) needs no healer or sapper is Ok for you.
Berserker is a fighter. Inquisitor should kill supports, range DDs or enemies left alone and almost dead, not bring death to everyone not tough enough to survive 2 power attacks.
I don't say berserkers are weak (I assume I die too much from berserkers' clubs playing witch ), I say that they are not as terrific as you suppose them to be.

here comes the news:

https://dl.dropboxusercontent.com/u/5545718/panzar.JPG

We can definitly see who is hiding in your team

But srsly
Blue = 3 really good ppl, good setup (2 fire + 1 ice)
Red = 1 good player, no ice/fire, at least 3 ppl that just joined the game....

It's just like DotA in my opinion. If you want to win regularly form a team, otherwise get used to those sorts of games. Personally I only have them very rarely, despite playing alone. I really don't think one match should affect your opinion of the game as a whole.