I find, just like in Azeroth, the pally should farm stuff that is vulnerable to our class abilities. So in outlands the demons, ghost spirits, anything that you can cast exorcism on.
I like to judge crusader, throw up SOR, then swing away with two hander while using holy shock and exorcism, throw in holy wrath for packs. Keeping mana pots handy is a very good idea. I try to keep the pace up so I'm constantly fighting, and only stop to drink if my mana pot cd is on.
Edit to say: Like a couple others mention, since killing is slower than say, a lock or hunter, I have mining and skinning maxxed as well to help out my efficiency.
Edited, Oct 8th 2007 3:04pm by kindgreen