Re: Smith resonates with me in a way that the other nuWho docs did not
Eccleston was my first Doctor as well. And I did enjoy him, but I much enjoyed Tennant's portrayal better. Nine was too much of a "working class" Doctor to me, he felt removed from how the character has been in the past.
See, that was exactly what I
preferred about the Eccleston Doctor. He felt so much more
real than any of the other Doctors have ever felt, before or since, because of that working-class vibe. He really embodied that notion of, "Anyone you see working a normal job could be extraordinary underneath it all."
And he was a bit dangerous, too. As per "The Doctor Dances," we know that this guy is the sort of person who goes and blows up arms factories if he thinks they're sufficiently dangerous or evil. You could completely believe that this is a guy who overthrows governments when he feels like it -- "Doesn't she look tired?" would sound more convincing coming from him, frankly.
And we get this hint in "The Empty Child" that the Doctor was abandoned as a child. This intrigued me; usually upper-class children aren't abandoned like the Doctor claims to have been. There have been claims since about how he was in a nursery and may have had a brother, etc. But, I've gotta say, I always liked the idea that the Doctor is actually a lower-class Time Lord, that he came from the lower fringes of Time Lord society, was abandoned by his parents, yet managed to work his way up into a higher status at the Time Lord Academy before whatever happened happened and he had to run away in the TARDIS. It makes the alienation between him and the rest of the pompous Time Lords all the more interesting to think that maybe the Ninth Doctor was the Doctor going back to his "default" personality, stripping down to the bare essentials of who he is in the wake of the Time War, stripping away the pretenses of an upper-class life to reveal the working-class man hidden within.
Anyway, that's just my take on the character. It's something I've thought about the Doctor ever since watching Eccleston's first season. The absent-minded professor and geek chic versions that Smith and Tennant brought were fun, too, but I sure do miss that "I didn't go to Eton but I'm fifty times smarter than the lot of you, and you should be scared to death of me" feel that Eccleston brought.