What is it about Tom's Doctor that makes him so unique and well loved? Just what is that magic ingredient that sets him apart from all the other Doctors?
I think it's a mix of several things. Firstly, and most crucially, it's Tom himself with his otherworldly personality. He's such an eccentric and unique person and, as he's said, he was just playing himself so Tom's unusual personality shines through in the fourth Doctor. All the other Doctors were just 'playing a part' whereas Tom was being himself, and with no disrespect to the other actors, they are all pretty ordinary people, but Tom is extrordinary.
I think that the fourth Doctor's 'look' is more memorable than any other Doctor - the hat, the long scarf, the mass of curls and staring eyes - he's just so visually pleasing. Then there's Tom's amazing voice, his stature and natural authority. He always dominates every scene he's in even when he's not doing anything. The fourth Doctor's character is also something special, with his unpredictability - you never quite know how he's going to react in a situation - and I also love his childlilke quality. There are so many facets to his character, and Tom's endless enthusiasm for the part always shines through and keeps his Doctor fresh and exciting, whereas I sometimes feel that certain other Doctors were a bit on autopilot at times.
What do other people think are the things that makes Tom's Doctor so amazing?