Spirit > Mastery > Crit > Haste.
If the item has no Spirit but has Crit and Mastery then you reforge the Crit to Spirit. If the item has Haste and Spirit, reforge the Haste to Mastery.
Note though that Mastery and Crit should be reversed when you are focused on tank healing.
If the item has no Spirit but has Crit and Mastery then you reforge the Crit to Spirit. If the item has Haste and Spirit, reforge the Haste to Mastery.
Note though that Mastery and Crit should be reversed when you are focused on tank healing.