User blog comment:Spartian300/Why Titans are the best class/@comment-76.19.152.215-20140918165022/@comment-24.192.134.69-20140919143401

You must be forgetting about the other titan subclass, Defender, which has Ward of Dawn. and one ability in the skill tree is Armor of Light which gives significant damage resistance to the user and all allies within ward of dawn. It is enough to tank a couple bladedancer hits and golden gun shots. I have killed many bladedancers and gunslingers who were so confident that they could kill me only to find out that they ended up getting the old shotgun + melee combo.

TL;DR  Hunters and bladedancers tip the scale of the Crucible one way while Titans and Wards of Dawn balance it out.