There is too much AoE in WotLK to really want to use a Pally for healing. Wild Growth, Circle of Healing, and Chain Heal are too good to pass up.

I really, really, really wanted to make a holy pally work for my PvE team, because of their great buffs and durability, but I keep migrating back to Druid or Priest because of their outstanding AoE healing capability.

Glyph of Holy Light doesn't count...