Ah yeah I did leave out what I plan to do.
I wouldn't mind doing instances, as I'm more of a PVE-Oriented kind of guy, but PVP is also very interesting, I only don't do much of it on my main because I'm a healbot that gets CC'd to hell and back.
So is there any PVE fitting for a 3-box team, as well as PVP?
I want a few more 70's. I've been in one of the best guilds on my realm for a month or two, and they all have alts that they run karazhan with and I'd like to join them. I figure a multi-box would make leveling a bit more tolerable and fun, as well as interesting.
So are there any teams of 2/3 that are viable for PVE and PVP at the same time? If not it definitely wouldn't bug me to roll twice. I'm not sure if I want to do 2 different classes in a 3-box. I'm not sure a priest/mage/mage would be easy enough for me to control (I don't like to think.) and if I had a priest I am more then certain it would be expected to heal most of the time, which would probably be too much of a load for me. But then again I really have never tried it.

I would be way more interested in soloing 5-mans then PVP but since I don't fully have the means to 5-box, what are the possibilities with 2 or 3 people in PVE? Are there really any?