http://wow.allakhazam.com/db/class.html?wclass=2;mid=1229110515202736947;num=7;page=1
The linked post entitled "Wrath of the Paladin: Tanking in the Expansion" is an updated and codified version of the WoW Paladin Forum sticky that I wrote for TBC and requested unstickied after the launch of Wrath. This new thread has been expanded upon to be relevent in the new expansion, and is the only of the Paladin Forum guides/stickies that reflects the changes.
It will be kept up to date as patches and content changes, and as the discussion in the thread evolves. I'd appreciate if it could be Stickied.