Note: This post is from a high-level perspective of what is "fun". I fully admit that I am not an experienced PvP player, and am just going by what is fun or not for myself. I am not calling for any specific class to be nerfed and/or buffed in a vacuum.
Crowd Control--by which I mean effects that cause a player to temporarily lose control of her character--is an important part of PvP. It adds a second layer of strategy over just inflicting and healing damage. To make an analogy, Crowd Control is like executing a pin in chess. You prevent a piece from being used, without actually needing to capture it.
But Crowd Control is also very frustrating to play against. No one likes losing control of their character, even if only for a short while. So Crowd Control is in somewhat of an awkward position. It needs to exist, to add that extra level of complexity, but it also needs to be kept in check or games become miserable.
There are two situations where Crowd Control in WoW goes over the boundary, in my opinion. The first situation is being able to lock down a character for an excessively long time with multiple abilities. At this point, you are simply not being allowed to play, which is extremely frustrating.
The second situation is being killed while being affected by Crowd Control. The primary culprits here are Stuns and Fears. No one likes being stunned and then blown up. It feels very unfair, like the player is unable to even try to defend themselves.
I would offer two suggestions for WoW PvP:
- All abilities which cause a player to lose control of her character share diminishing returns. No more categories for different types of Crowd Control. Treat them all equally.
- In PvP, all abilities which cause a player to lose control of her character break on receiving damage. This includes Stuns and Fears.
The first change already somewhat exists in WoW. Most abilities are separated into categories, and abilities in each category share diminishing returns. This just removes distinctions between different types of Crowd Control.
The second change is the bigger one, and would probably require balance adjustments. If necessary, glyphs or talents like [Glyph of Polymorph] could be added to make Stuns or Fears more usable.
Crowd Control is necessary in PvP, but it can also be overused and make the game less fun. Separating out Crowd Control from dealing damage lessens the frustration in PvP, and would remove a major source of irritation between classes.