True.. DKs can do that too, only better. The ghoul has its own 3 sec stun, theres also a 100% immobilize, death grip is a temporary stun, etc, so I still think the DK shines for PvP more than the pally. Might be a bit easier to take down a DK than a pally but the DK also does not rely on mana and can do more damage. Plus the fact that you can lay down a death and decay which has a huge radius and will slow everyone down in it will make rogues who like to bob and weave a bit easier to target/shock as needed I think.

Just musings for now. More input always desired!