I was going to play mage, but then I heard that my other two buddies were going warrior/mage and I thought for our small 4 person group that having two mages would be overkill.
I also thought Warlock for a while before settling on Priest because our small team needed somebody to heal for group making purposes.
And then found out that the other mage also rolled priest.
So now we’re two priests, a warrior and a hunter.