I really liked the battle between the Doctor and the Cyberplanner instead the Doctor's head. I also really liked the new Cybermen because they were more menacing. No longer, slow, clunky and loud, these Cybermen can sneak up behind you without you knowing it, can adapt instantaneously to your defenses, use their own body parts to ambush you etc. They seemed a lot more clever! I agree the kids were annoying! If I have one gripe about Matt Smith is that he sometimes acts way too childish. He's a 900+ year old Time Lord but acts like a 5 year old with ADD! There were a lot of similarities between the Emperor and the Doctor. Both had to make terrible decisions that wiped out entire civilizations in the fight against a greater evil. This could have been explored more.