Yeah, I like 12 too. I really didn't at first, but that's how I've been every time there's a new Doctor. I was even sour for a bit over 9 turning into 10, even though that was remedied pretty quickly :3
I don't think Capaldi made season 8 great though. It's really mostly thanks to Coleman. But I liked him a lot better in Last Christmas than in Deep Breath, so I think the two of them got a better dynamic as the season progressed. Probably much thanks to how well Capaldi and Coleman get along irl ^^
My favorite seasons are still S1 and the second part of S7 though. S7 because even though Clara and 11 were silly, those were still my favorite episodes. Just, every episode is great in its own way, and the Clara echoes were intriguing before you had seen the conclusion. Plus, Day of the Doctor and Time of the Doctor are included in S7 part 2, according to me! And S1 is simply the best. I recently rewatched it and wow. Everything ties together, like Rose's family always tagging along and them revisiting people (Slitheen) and places (Satellite 5 and Cardiff) and picking up companions along the way (Adam and Jack) and it's just so beautiful, all of it. :3