Is Blessing of Salvation the best raid spell in the game, minus Taunt?

Obviously Taunt is #1 and damage/healing spells are essential, but let's say you're only removing one spell from a raid environment besides Taunt (ie removing Flash of Light vs. Salvation). If you were to remove a single heal or damage ability, all other classes still have heals and damage.So is Blessing of Salvation the best overall raid spell?