Thinking about a reroll for my 5 man

I am wondering if I should reroll my x5. It's currently a Prot War, Holy Priest, 3x afflock.

It works pretty well, but I am worried about holding AoE aggro and noticing certain 1 class 5 mans may even do better.

Also I was looking at the 4 lock 1 shadow priest combo thinking that subbing out 1 lock for an additional shadow priest would almost certainly be a more deadly combination.

Any thoughts?

edit: Oh, just a note, I have a level 18 (same level as my toons, but diff race) Blood Elf paladin that I could sub in as the tank to change the group. It's a different race, so somewhat ruins the group, but has maybe a bonus by being a Blood Elf Paladin controlling 4 undead minions.

Oh the decisions. Someone help me make it, heh.

Drop the Warrior imho
I have multiboxed the holy trinity (tank healer 3dps) with a warrior and although it is possible it is hard. Althoung I have not actually tried I assume that a prot paladin requires much less attention and is much better on aoe pulls.
Bunny

Paladins certainly seem to be preferred over Warriors for boxing.

Since you have some cc you should still beable to do it with War. Wars have more options for armor and some of the best tanking can be done , but it requires a lot of micro management. War has to be your main. I run with 1 war 3 mages and holy priest I prefer war for some instances . I also have paly on same account as war to tank other inastances that are not war frindlley. it all depends on instance. My war is undead so wotf is nice.

I also run with 1 shadow priest and 4 locks on pvp server, this grp can do all normal instances but can not do many heroic ones. blueberries do not stand up well but since there are 4 they can last long enough for dps and fears to do the job.

The easiest grp to do Herioc for me so far is Paladin 3 mages and Holy priest. I m working on 5 druids , 5 shammy and 5 hunters. so time will tell.