I thought her plotlines were better than 12's actually (some episodes like the one with River song excepted). Her acting is why she's taken over the soft spot I had for 10 despite his faults.
I think the first season 12th Doctor was in was terribad, but the next two seasons seriously redeemed him. And there's that absolutely brilliant Christmas special with the kid who became a superhero.
And... we're derailing. Let's stop.