[user104658]

Originally Posted by GoldHeart

Also it's down to the writing aswell. I heard Whittaker got some bad scripts/ plots.

The issue with the Whittaker era wasn't Whittaker at all. I think it took her slightly longer to "find" the character than Tennant or Smith - but I'd say the same about Capaldi. When she did she was a good doctor.

The writing however is 80% trash. A decision was made at some point to dumb-down the sci fi and make it all more kid-friendly when it had been becoming more and more clearly aimed at an older audience throughout the latter half of the Tennant era, the whole Smith era, and definitely the Capaldi era... it was a terrible move. Whittaker did her best with it. There are one or two great episodes where she shines, it's a pity the consistency is so low.

I strongly suspect the latter half of the Smith seasons will always be the show's peak for me personally but still willing to give it a chance ... just go back to it being a little darker.