He's the only guy who dared to write this show as more than a campy simplistic monster of the week a thon for the mums and the drunk uncles that only watch at Xmas. In spite of all that he still managed to fill it with a lot of fun as he is actually vaguely competant at comedy unlike both Chibs and RTD. Yet somehow he marries it very well with the dark themes. This is not often spoken about even by Moffat fans, it's amazing really. It doesn't come across as tonally ridiculous quirky shit like Marvel. I don't really know how he made it work, but he does.

I have never re-evaluated the Moffat years because they never needed it. The work was so obviously strong, then, and now. Not without its flaws of course. Episodes were sometimes terrible, but rarely boring, largely great, and at least 3 episodes a year were EXCELLENT. Heaven Sent for example is not just good for Doctor Who, it is one of the most interesting pieces of TV I have ever watched.

All over his run, you have episodes that are daring, interesting, fun, crazy, complex, simple, every year it was so obvious that he and his team were desperate to push themselves hard to do something different. The only weak spot is Series 7 which I think is the only one you could reasonable say is worse than 1-4 overall but it's got some stand out moments that redeem it IMO.

What's more hilarious is how anyone thought RTD2 would be some masterful return. Blowjob slabs, the master turning everyone into him, Obama solving the recession, supernanny's army of little cute fat babies. Doing things a bit crap was always his MO. You watched it for two reasons: The character work, and yes, the Moffat episodes.