Warrior/Knight
I played the Warrior/Knight a bit these days and it felt pretty good. The only thing I'm missing is: The class feels a bit weak in terms of defense. Maybe change the Concentrated Precision (ID: 492914) to increase physical defense by 15% but increasing HP only by 5%.
The class feels a bit of an HP bubble but has not that much defense, since it uses Berserk on cooldown for max dmg -> aggro, which is overwritten by Defensive Formation. It felt a bit strange using Shield of discipline while running berserk and switch to Defensive Formation right afterwards. I'd prefer either having Berserk not reducing my Def at all, or give the class an additional def increase passively.
Knight/Champion
The Offensive Sacrifice still feels a bit clunky. Stacking the buff to 10 requires 10 hits of Holy Strike, which is in a normal rotation around 15 global cooldowns, means, the class is reaching its maximum defense after 15 seconds. A good thing is the increase even if the target is immune, but it still doesn't feel good, since the stacks can run off. Maybe don't let all 10 stacks run off once the buff runs off after 20 seconds, but just lower the stacks by 1 any 10 seconds.
Knight/Mage
The class just feels too strong. The meta shifted from Knight/Rogue to Knight/Mage and I rarely see any other combination out there. The Holy Light Domain is better than the Warrior/Priest Debuff, which makes the class as a supporter useless if you have a K/M in your raid. Also, the increase of light damage through Intensification is just too strong. There is no other knight class with a better burst aggro imo, at least I haven't found any yet.
My suggestion is here, to lower the damage reduction of the Holy Light domain from 21.8% to 11.8% but let it stack with the W/P debuff. With this skill (which has no cooldown btw and can be kept on a 100% uptime) you don't need any crowd control and even can aggro mobs while you're feared, since it's running more or less passively (if you include it into your rota or simply use a holy strike/light domain macro).
I would like to see a more diverse tank meta and Warrior/Priest should be more useful, in any raid setup.
Druid/Warlock tank
The class is pretty decent with specific cloth tank gear, even better than any warlock tank imho. In terms of gameplay, it's just too easy to hold aggro. Even a full support scout burst is no match for it if you have at least 0.5 seconds left for casting your first spell. In my opinion the strongest aggro burst in game by far. But it's way too easy for being such an insanely strong tank combination. So I would suggest lowering the aggro bonus of Toxic Possession (ID 1490628) from 100% to 75% for the moment. The aggro bonus is nothing for a dps, which just uses some recon runes in mainhand and offhand, so it just affects the DWl tank.
I mean, for real: I'm just standing next to the melees, using sandstorm on the mobs to pull them and the aggro within this single sandstorm is enough for them at all. I just keep spamming spells for damage, since I got like 1-1.2kk matt all the time with no further support. In burst I even reach 1.5-1.6kk matt, which is insane. In a full golden cloth tank gear, I could reach 1.8kk for sure, while being at 1kk hp.
Warlock/Warden tank
If there is a druid/warlock tank, I also want my warlock tank being better. This class requires everything the druid does not for surviving. I can reach the same damage mitigation, but need to work for it decently more. Keeping up Psi, while alwas standing on the Mind Barrier and channeling the Otherworldly Whisper. If I have to move out of the Mind Barrier, I can't even channel my Whisper, making me vulnerable to being oneshot to bosses, like Jerath.
My suggestion is: Increase the damage mitigation of Stone Shell while under the effect of Willpower Construct from 12%x4 to 12%x6 again, as it was at release of the class. This will be 72% less damage, with specific cloth tank gear, also reaching the cap. But since aggro on this class is more difficult than on the druid, it would still be balanced I guess.
Warden/Knight
This class is not good at all, as it currently is. There is no point of playing it at all. Better play a warden/warrior, but there is also no point imo. But Warden/Knight "could" be a decent tank with some love.
- First, let the Spirit of the Oak become a buff, no more a pet or prevent it being targeted/attackable by mobs and don't let it pull mobs neither. The pet dies too often for being useful for the class. In Gorge for example, it's just useless.
- Holy Chain (ID 1490664): Give it an additional 15% aggro boost. The taunt is quite useless currently without such a boost, since burst aggro on Wd/K is one of the worst of all tanks.
- Energy Absorb (ID: 1490866): The amount of damage reduced for raid members is too low for being useful. Increase that from 15% to 45%.
- Also Energy Absorb: additionally increase the caster's physical damage by 30% (from 15%). And increase the duration to 30 seconds, as most other 60s cd buffs have become.
EDIT: Btw, please change the Warlock/Warden Stone Shell to only decrease taken damage by monsters, or everyone will play this in pvp...