I had an idea on my way home from school about how PvP paladins can get the closer most whine for. I dont PvP very much, so i dont know if this would be OP or not.
Glyph of Hammer of Justice (redesigned)
When your target is more than 15 yards away, the cooldown on Hammer of Justice resets. If you change your target and your new target is closer than 10 yards, Hammer of Justice will automatically be on cooldown.
Basically what this does is allows paladins to stun their target whenever they get too far away (HoJ range is 10 yards, so you'll need to outside of range for the cooldown to reset). The second part prevents paladins from switching from a far away target to a close target to instantly stun them whenever they want.