So my 5 shamans are all level 70 now, and I'm trying to get some decent gear for them. I also have a 63 paladin I've used to MB some when my shamans were all 63 as well. Now, I want to get my paladin to level 70 as fast as possible. Would it be faster to take him to instances that outlevel him, regular instances, or just assist him on quests? I was thinking maybe go to instances 2-4 levels above him as it would be good XP and he could mostly just sit there doing nothing, even on boss fights.

Any input on this?