Here’s parses of all three talent options at level 60. The results are surprising, and I’m going to re-run them to validate.
One thing I did notice, however, is that Soul of the Forest does not proc after Celestial Alignment.
Since I could not get Darnassus to myself, you’ll have to look directly at my damage summary and not the overall.
Soul of the Forest:
Force of Nature:
Hercdeisel was kind enough to crunch these through Comparebot for us. Here’s the results.