Moffat has grown on me, but I do agree that he's far better as a writer than as a showrunner. In fact, he was, in general, a better writer before he became showrunner, though there have been exceptions.
But then again, every showrunner for the series since Verity Lambert have had their fans and detractors. Graham Williams and John Nathan-Turner have attracted more than their fair share of controversy, and often with better reason than RTD or Moffat.
I've lived for over 2000 years, and not all of them were good ones. I've made many mistakes. And it's about time I did something about that.
-The Twelfth Doctor, Doctor Who: Deep Breath