Yesterday, I moved all of my calendaring on mobile back to Fantastical after switching to Sunrise a few months back. Now, I’m back to comparing the two. Regardless of whichever I choose, you can’t go wrong with either one.
QUICK UPDATE: It seems as though Fantastical is just a bit more powerful at this point, so I’ll continue to lean on that. I’ve already grown accustomed to using Siri much more on the watch than I ever have before, so the ability to use it to add events with Fantastical’s natural language input is a feature that’s tough to top.