this is not a post ranting or defending any class, as players get very passionate and shut down the reason centers of their brain over that sort of thing. any problems with classes I have no doubt zos will handle (or not as the case may be)

PvP in a class system with lots of skills is based on a balance, the easy way to do this is a circular rotation system with limited choices, (ESO and LOL use this system along with other games, card games, moba's etc.)

example of this is you have skill A, its a fantastic skill that does a bunch of damage, however, skill B is also a fantastic skill that does a bunch of damage AND negates skill A, but then we have skill C, its does a bunch of damage and negates skill B, but is negated by skill A.

this allows a skill to be overpowered in its own right but balanced, if everyone uses skill A then soon people switch to skill B to shut them down, then they in turn switch to skill C to shut them down, and the circle continues. not only is this effective balance that can solve straight power creep but it also keeps the meta shifting, or what's the current "Flavor of the month".

(Disclaimer: this kind of balance hurts people that refuse to change their play style, they always pick rock and get mad when everyone shifts to paper and refuse to change their own style to scissors.)

aside from straight class balance you have things to consider such as but not limited to:
-Level
-Gear
-Connection/Computer quality
-Food/Potions
-Grouped vs Solo
-Skilled vs Non-Skilled
-etc.

this is stuff that ranges from difficult to balance to impossible to balance. so what do you do?
Averages, you pile hundreds of people into PvP on every side, chances are there will be lots of people on every side that have various Levels, Gear, Skill, Groups, and so on. This causes the individual good/bad problems to even out on the average of PvP as a whole.

however, with averages you encounter outliers, or clusters of data that while random can be used as examples of broken gameplay, the only thing you can do is add more data (or players to cyrodil, or expand your data to encompass all servers)
to try to keep the average more balanced.

and example would be in eso PvP there is one server devoted to each faction, these are common knowledge and are used just for the buffs you receive from them. on there own you could say Dominion is OP, or Pact is OP, or Covenant is OP. however if you take all 3 an average them then you will find they balance out a lot better.

same for PvP encounters, sometimes a really good player with a high level, awesome gear, and a perfect rig/connection runs into a group of crappy low level players on bad connections and stomps them all (you can find these on youtube)

this stuff just happens, but it is the exception not the rule.

thanks for reading, and while I not saying do/don't nerf anything in particular, I hope you know a little more about the systems or design of the overall PvP experience and Balance.

-Wing