Bristol or Birmingham for student living ?

Hi I was wondering how you guys would say Bristol stacked up against Birmingham in terms of student living. My priorities are cost of living, nightlife and a lively arts/alternative scene preferably a friendly city. Ofc I know Bristol is great for all of those except the first, in which is my worry, housing in Bristol can be nearly 90 pounds more a week. My question is if Bristol is worth the crazy money in comparison to Birmingham. For reference have maximum student loan and bursary which would give me 13k a year, I have saving of around 6k which I would be willing to use but preferably not to, or even if possible I want to work and save more. (BTW for my course their both about equal in how good they are). Prestige of either university does not concern me as for my subject they are neck and neck (even on LinkedIn i can see grads end up in similar roles)