Started 4 boxing ... some questions.

I finally took the dive and started four boxing. I made 4 orc shamans (3 on trial accounts). I'm thinking of adding a 5th.

Originally, I was going to use my 70 pally (on a diff account) to power level the shamans but I decided against it. It is not only boring but defeats the challenge and adventure of a 5box. So I'm going to make a 5th on my pally's account. Two choices that keep coming up are a 5th shaman or a druid. (I've played 2 warriors to 70 so I'd rather do something new).

We've all seen what 5 shamans can do, lots burst, eye candy and the fact that your 5 boxing all of one class makes things simple. Some instances are easier than others.

Druids add some nice versatility especially when instancing, they can take the roll of a tank, additional burst healer. I'm not sure about pvp though since to be played efficiently (and not get burnt down) there is a lot of kiting and running around which I would rather not do.

Although the new quest changes in 2.3 make instancing less effective, I perfer not to level in the open. In the short few hours I've played to level 12, I've gotten countless whispers and been called a bot more time that I care to admit.

Grats on taking the plunge, is this question though if you should add a fifth and what class? Definitely another Shaman in your scenario.

I'd go with a Druid. They're incredibly versatile and give you that tanking option that's so nice to have when you level in instances.