as far as the low level instances, I used a shaman for this whole tihng, and I am still 4 manning Utgarde.. I had not trouble with #1-6, But you can not just jump and pull all of the stockades... THey do not hit hard, but they have this kick the pushes you down on the floor. When you start to getr 200 of them on you, they can start kicking you so much that you can not even get up lol.. So just do it in 2 sections.. Thats the best way...

I did, DM, Stockades, SM, ZF, blackrock depths, Ramparts

I got to lvl 60 in /played 18 hours (beast) with that setup