@ the idiots that are saying Fear brings more mobs

You obviously havn't seen the new Glyph of Fear, it makes mobs COWER IN PLACE. Thanks for playing. In addition, Fear, Seduce, and Banish all gave a graphical indication when used. If you can't pick out the mobs that have Floating hearts or Skulls over them you need to get your eyes (or screen resolution) checked.

Fear affects all the creature types that Polymorph does, in addition to elementals, dragonkin, and Demons, making it superior
Banish does indeed only affect Elementals and Demons, but did you stop and think about how many Elementals are in the new dungeons/heroics?
Seduce does indeed only affect Humanoids, so groups with 2 Humanoids that need to be CCd can be handled by 1 warlock, The Succubus also does good damage so having her out doesn't drop your DPS all that much (Destro Locks lose more than the other 2 but winning is more important than personal DPS).

Frost Nova, Cone of Cold, your Water Elemental's Frost Nova, and Deep Freeze are not CCs, they are snares, slows, or stuns. You also have to be Frost, so they are useless to Fire and Arcane. you still can't polymorph an Elemental.
Kick, cheap shot, kidney shot, dismantle, and garrote are not CCs. Blind is okay as a CC, but cannot be reapplied immediately. Sap affects Humanoids, Demons, Dragonkin, and Beasts, still inferior to Fear for targets, lasts longer, cannot be reapplied.

@thatguy

You can't cast Polymorph if you are Seduced, thanks for playing, you still lose. Imp out? He dispels the Polymorph. Fel Hunter? He spell locks you, eats your buffs, and makes you cry. Fel Guard? Seriously, did you think you could stop him? Voidwalker? lol, you might have a chance, but I haven't used a VW since Vanilla. You're out classes, out CCd, and even if you COULD kill me, you'd still die from the DoTs. Even in death I claim victory.

/cackle