I've only seen one or two Ninth Doctor episodes (the one where he takes Rose to the end of Earth) and the WWII one (with the gas masks). I mean to watch more, but Rose's reaction to having been "missing" a year was sort of offputting to me. Do think her chemistry with the 9th doctor was better. (I'm with Queen Victoria when she gives them the smugness smackdown in the werewolf episode.)
Beyond the obvious head banging moments (Donna's explody-brain and general extra-ness, all women want to be married off, Martha + Mickey, Wilf as a pottering-about old man, EVIL Time Lords), End of Time Part Two also made me crushingly depressed the next day when I thought the message.