SA:
It's an insanely difficult choice, and one I haven't made yet. My friend and I realised that I'm the heroine in a romance novel, with this choice between York and Cardiff. York is the nobleman, a bit frayed around the edges, but with excellent breeding and stature. Quirky, though, with a bit of a dark side. And Cardiff is the always-cheerful blokey dude, frank and open and welcoming. Not as prestigious, but there's just something about him...
And then we anthropomorphized the cities. Where York was David Tennant (more his HP character than his Doctor) and Cardiff was Rhys from Torchwood.
And then I realised I essentially had to make a choice between Doctor Who and Torchwood.