Oh boy, it's the one with the farting aliens.
I don't care for this one at all. It's a very pure expression of RTD's "kid-friendly" vision of Doctor Who, but...it makes it kid-friendly by featuring farting aliens. No thanks.
But there's still good stuff! Pretty much everything about Rose's return is pretty great. Jackie's anger and relief after Rose has been missing for a year, Mickey's status as a suspected murderer, all good stuff. We get to meet Harriet Jones, MP for Flydale North, who's always a delight. We get to see UNIT, still with "United Nations" in their name. We also get to meet Toshiko Sato.
The broad strokes of the plot are interesting. A crashed UFO, faked by aliens not as a diversion, but as a trap for the council of Big Brains that would immediately convene. I like that a lot. I also liked the way the Doctor immediately drops his dismissiveness of ~~Ricky~~ Mickey as soon as he says something intelligent.
But at the end of the day, those farting aliens are always going to be there.