30 colleges offer this subject.
Oxford is collegiate, and applicants may name a college or make an open application. Open applications are assigned to a college or hall with relatively fewer applications for that course in that cycle.
Oxford calls this process reallocation, and it is designed to help strong candidates be considered fairly when one college is oversubscribed.
College choice affects where the file is initially considered and, if successful, where a student may live and receive some tutorial support. It does not change the degree, central course content or admissions standards.
We recommend choosing on practical grounds: location, accommodation, accessibility, facilities and size. Trying to identify an easiest History college is usually a poor use of time.