I just ordered two high CRI LED flashlights, to experiment, but I don’t think it matters unless you’re in the woods. And a recent post by fogfwar (What about the CRI hype (color rendering index) - #173 by fogofwar) showed to me that CRI alone isn’t the “be all, end all” of the flashlight world.
And like raccoon city pointed, even though CRI might be important, efficiency is also something that cannot be ignored.