I love 12.
He is autistic, alien, and otherworldly. He has self doubt. He has a deep, strong love for Clara that goes beyond 11 being her “space boyfriend” - no, it’s a strong platonic love and he as a “duty of care”.
After 10 being a love-sick puppy and 11 being quite disconnected except the weird dynamic with River, I find 12 a refreshing change of just being so caring.
DOCTOR: You betrayed me. Betrayed my trust, you betrayed our friendship, you betrayed everything that I’ve ever stood for. You let me down!
CLARA: Then why are you helping me?
DOCTOR: Why? Do you think I care for you so little that betraying me would make a difference?
Absolute love that quote! Just shows how much he cares.
I love when he first regenerates and Clara cannot accept his change, I see that all as a trans allegory (I know it wasn’t written by that but it can be interpreted)
Then we get the dynamic with Missy, which as well as her being my favourite Master, the 12/Missy stories are my favourite Doctor/Master interactions completely.
Then The Husbands of River Song is my favourite Doctor/River episode. It is 100% perfect, no notes.
Capaldi is a brilliant actor. And 12 gets all the best speeches. The one in Zygon Inversion is incredible. And there are so many more great ones!
Then of course there is the masterpiece, probably the greatest bit of Doctor Who ever created, Heaven Sent. And that whole trilogy is brilliant.
Then the 12/Bill dynamic is so different and so much fun. He is like a caring dad again but more like a granddad to young Bill. The ending is heartbreaking.
Ahhhh I could go on. He’s absolutely marvellous!!
I get that the hating soldiers is a bit annoying but I don’t see it as much of a stretch - he hates guns and soldiers are walking guns. I actually think the entire existence of the Brigadier contradicts his stance on guns. It may be why, having watched Classic Who last, I never really understood the love for the Brigadier or UNIT. They kill people, for a living. It’s so anti-Doctor!
And it’s not a love triangle. He is a protective father figure. If you watch it knowing this, you’ll understand!