This is my take on a TBC version of the paladin tank farm build.
Stat Priority: Stamina > SP/Intellect > Reflect Damage > Defense > Strength
The purpose of the build is to be able to do AoE damage as a Paladin tank so you can farm dungeons with as little trouble as possible. It would be a good idea to see if you can get uncrushable status, as it will make it less likely to be one-shot by some random crit.
The reason why Strength has been dropped a bit is due to the fact, that any spell that does Holy damage like [27173] scales with SP when it gets high enough.
Just as the Vanilla version of the build, you should try to get items that has some reflect damage properties. One thing you can do is add shield spikes to the shield, which will do damage to the enemies each time you block. This means the higher your block chance, the more damage you can put out from the shield spikes. That change can be increased from the defence stat, which also increases your Parry and Dodge change as well.