There are many reasons why I love my class. I love the mana system more than the other systems of energy and rage. I love the unmatched power of the Dispersion defensive cooldown. I love how every point of damage I do rewards a small percentage back to me as self-healing. I love shadow priest lore. And most of all, I love how badass I look in Shadowform.
I love shadow priesting so much that I cannot begin to comprehend why anyone would play any other spec ... which is why I'm putting the question out there: What do you love most about the class and spec you play?