WHO's the Doctor? Matt Smith
Childlike, audacious and a bit bonkers, Matt Smith's Time Lord has the fun factor for Newsbeat video journalist Sophie Miller.
When Matt Smith was announced as the Eleventh Doctor, I shared the opinion of many who weren't convinced.
There he was with his quiff and his young, young face, and I couldn't see how he'd follow the brilliance of David Tennant. But one thing I have learnt about castings on Doctor Who is to give them a chance. And now I'm gutted he's leaving - he's definitely my favourite.
It's difficult to put into words why he's so brilliant. He's a young man with an old man's soul and has a playful, childish way about him. We first saw him trying to work out what food he liked with the young Amy Pond, settling for a bowl of fish fingers and custard. You loved him instantly.Jammy Dodger
He nearly defeated the Daleks with a jammy dodger, is friends with Father Christmas (or Jeff), speaks fluent baby and he's happy in a hat, particularly a fez (and fezzes are cool).
He's ever so slightly bonkers which makes him unpredictable and he's got all the hallmarks of a bumbling idiot with a healthy dollop of genius. Whereas Tennant's Doctor frequently proclaimed how brilliant he was, Smith's just quietly is. He's all about the adventure, exploring new places, making friends as well as saving the world.
His relationship with his companions is endearing. He met Amy as a young girl and treated the adult Amy (who is possibly my favourite companion ever) as a mildly annoying sibling, especially when Rory came on board. There was no room for romantic involvement and it would have felt wrong (and after all, he is accidentally engaged to Marilyn Monroe).
He also has a comedy Sontaran (Strax) as a sidekick with his inability to determine gender and inappropriate displays of military aggression - hilarious!Flying sharks
Under Russell T's watch, Steven Moffat's episodes always had a mature edginess to them. At the helm, he's been able to flex his muscles and has brought us some ingenious story arcs whilst maintaining the fun of Doctor Who. His Christmas 2010 episode A Christmas Carol with Katherine Jenkins was just beautiful and sad and had me in tears, and it had flying sharks in it. How does he do that?
Growing up, Tom Baker was my first Doctor and I really loved Sylvester McCoy's quirky, awkward geekiness. Christopher Eccleston did a brilliant job of reintroducing Doctor Who and David Tennant took it to the next level, showing the Doctor's heart (or hearts) and taking us on an emotional roller coaster. But Matt Smith has taken it back to a fun, child-like quality and completely nailed it. And made bow ties cool.
I now find myself in the same position I was nearly four years ago. I can't see how Peter Capaldi can win me over. But I lay my trust in Doctor Who. Come on Twelve. You've got big shoes to fill. Impress me.