One of the unique of the priests is being the only class with 2 healer specs on the game... both being inferior on average in a lot of situations (thanks druid/shamans), but still... at least it require thought to use it (i laugh everytime my RL tries healing on disc spec)
Random Rant:
Remove Mind Vision and give us back Mind Soothe pls... vision is 200% pointless while soothe gives utility (possible skips on m+)
Or make my dream come truth and give us a discipline build that allow it to be a cloth tank (there is a lot of possibles talents slots for that like fucking Shadow Convenant, Schism, Benediction, Clarity of Will, Masochism, Solace)...