Revitalize is THE ONLY raidwise resto druid talent. ( well ToL aura is a raidwise ablity also ).
How come LS could be better? If u r still spamming Nourish or regrowth - please do me a favor and leave this game... or reroll palla, If u have to use Nourish in Your 25man raids more often then few times per boss fight, swap healers arounds couse it's fail.
Resto Druid spamming Nourish = (wait for it....) WASTE OF RAID SPOT.