Ignoring KotC a little...
A WF Paladin/Ranger will have the option of going Juggernaut (eventually) instead of, or in addition to, Kotc. WF Paladins also get bladesworn transformation, a 1 minute rage-like profane bonus +4STR +4Damage and the standard PA enhancements. There is a very real posibility of a 3rd Paladin Faith tier as well, expanding on this DPS ability.
I have a feeling were going to see a lot of WF paladins in mod 9 and 10. Adamantine Body's suckiness is greatly reduced by DoS's +2MDB in heavy armor, and it's other bonuses combine to allow for an easy 60+AC unbuffed. Even as a pure 20 paladin, without Intimidate, a WF Paladin could likely hold agro on major bosses with the ammount of +hate available. When Juggernaut finally hits the servers, I think youre going to see a huge clamoring to build WF, especially paladins. At the top is going to be the PLD/RNG mentioned here.