The "right" answer is that it depends on what kind of damage the encounter features.
For something like Stone Guard it'd be:
Crit > Exp = Hit > Haste > Dodge > Mastery
Whereas for Gara'jal it's more:
Dodge >= Mastery > Crit > Hit = Exp > Haste
It's up to you to analyze where the damage is coming from and how best to handle it for you and your raid.