What's the best class to beat a bis ret paladin?

[Fiutolog]

Depends on the field, but I would say that shadow priest and warlock are best against paladin, because of dots, they can run away while doing constant damage, and dispelling them makes pala run ouf mana really fast.
Warrior, rogue, dk, feral are hopeless when pala put shield + healer wep. I could toy with them like they were nothing.

[atrocity23]

Frost mage, shadow priest, afflic/destro warlock.

Also other paladins. Paladin vs paladin will never end if both players play defensively.