Previous famous graduates from that particular uni?
Proximity to a world famous molec bio lab, where you can spend a month of lab/work experience?
Check linked-in or similar professional dating app (work, sorry) and enumerate the quality & quantity of post-grad work opportunities in a) Aberdeen b) Brum
I’m typing this from Leeds where a lot of friends are not tykes (born & bred yorkists), just ppl who forgot to go home ever from uni at the end of their studies, you might get “life-inertia” and be ‘stuck’ for a decade or more in this simple binary option city! Just think....
More thorts, For ex, if you’d done oil or gas or deep-diving or geo, wind-studies, Aberdeen would be your default, (and look how quickly they have replied) - I think you would find Scotland friendlier than Brum, who are also nice - but a bit more reserved
if your interests started with Balti’s, Shakespeer (he couldn’t spell either) , canals, then it’s Brum