LOL just because a pug of odd class makeups can work does not mean it's easy, or multi-boxable, or easily multiboxable... There are a few handicaps that multiboxing brings that precludes the use of some classes to their fullest extent. On top of that, managing some classes while boxing is difficult.

I now run a fully mixed team, to maximize party buffs, and to make future gearing easier, but had I started out that way, it would have been a disaster. My current team makeup is in my signature, Prot paladin, holy priest, Destro lock, Arcane mage, Ele sham. I also ran a heroic last night with my pally tank and 4 PvP geared elemental shaman, and it was fun because it wasn't TOO easy lol.