I put Badock down as my second choice, and ended up there - but I wish I'd put down Hiatt Baker.
HB's more social, the food is regarded as better and you're down longer corridors, so more people to meet.
Personally I think the HB bar is better than the Badock bar too.
Like Oblivious said, the rooms are smaller, but they're big enough. A sink would be good too - in Badock they only have them in Units 6-10, Units 1-5 have to go without. And whilst the bathroom situation varies across Badock, where I am it's one shower between twelve people, which is a bit of a pain in the arse.