How should I pick a college to apply to?

Picking a college is arguably a very important part of your application to Oxbridge as it is where you will be spending the majority of your time at. My advice would be to first check which colleges offer your course subject and look into the technicalities of the structure of the course and perhaps speak to students to hear their personal experiences. Visiting the universities on the open days they offer and having a look at as many colleges as you can is also important in gauging each of the colleges' own 'vibe'. There are several factors available in choosing your preferred college such as whether it's more traditional and conservative or innovative and modern. Another thing worth looking at is the college ranking table which might be important to you in figuring out which colleges consistently achieve particular academic excellence. The size of the college could also be important to you as well as the architecture and the look of the college since you'll be spending a lot of time there. However it's also fine if you realise you don't have a preference for one particular college in which case you can make an open application. At the end of the day, you will grow to love whichever college you end up at.