If you run them through Sethekk Halls, I suggest using an 85 prot pally or death knight. if you're geared for it. Keep Resistance Aura up and have a high health pool on'em. Try to watch which mobs in there stun/silence lock you, and toss down your Consecrations/DnD for those mobs only. The resistance aura + high armor rating should help you against stun locks. As soon as you come out of it, pop them fast. Usually only about 2-3 in the mobs that can stun you I think. Been a while since I ran it. If you start to pull too many mobs at once that get you killed, just cut down on the amount you pull and it shouldn't be a problem. It might slow you down a bit, but this way will also limit the down time between the 5th instance/hr cap you reach before it resets. Unless you take that down time to do other things. Death Knights might be better for this place as the plagues you spread will burn down mobs faster if your unable to cast anything if stunned/silenced.