khatovar beat me to it.

I've played a warrior MT for almost 5 years in WoW and I played a Cleric in EQ for almost 6. Through all that I've been boxing and when I started to heavily multibox in WoW, I went to pally tank because of its ease. I personally find warriors to be more entertaining to play solo, but for boxing, nothing really beats how easy it is to tank with a pally :P

*btw, my guild paladin tanks cried foul when I told them the reason I was using a pally tank for my teams. They though I was doing it because I finally realized that pally tanks were "better" pfft~ i say! :P