Rose
Well, what can I say except 'Brilliant!' I was one of the lucky so-and-sos who got to see the episode a few days early thanks to DWM, and I am very glad that I resisted the temptation to view the leaked download version. After the fantastic new title sequence, the story went straight into the action, with no slow build-up or prevarication. I certainly feel that this approach will please the kids - there really wasn't a chance to get bored in this episode, with rapid action, jokes and some wonderful character moments between the Doctor and Rose.
Eccleston is an excellent Doctor, capable from switching from humourous tomfoolery to powerful, dramatic performances in an instant. Those who consider either Tom Baker or Troughton as their favourite incarnations will, I feel, be especially pleased with his portrayal.
Billie Piper was also very good as Rose herself, and Noel Clarke, although he had little to do as Mickey, impressed me with his portrayal of an almost-human like Auton. Mark Benton was also good as Clive, a clever addition to the characters, and I hope we'll somehow be seeing more of him.
The effects were, at times, a little cartoonish, but that suits the plastic nature of the Autons and Nestene fairly well. The infamous wheely-bin sequence stretched this, and, although amusing and well-integrated into the plot, did look a little cheap.
However, this is a tiny quibble. The script was exciting and fun, and allowed the Doctor to be a monster fighter, but also a very caring, ethical individual who truly wants to help; rather than immediately attempt to destroy the Nestene, he first attempts to reason with it, which is just how I feel he should act.
On the whole, excellent. One other thing, though - anti-plastic? How does that work?