Ask the employers that you’re hoping to work for. They’ll know better than a bunch of 17 yr olds
Generally the best choice is the place where YOU will thrive - get the best degree classification possible for you and be motivated to get involved with all the extra curricular opportunities available to you alongside your degree. Both those things matter far more for your employability than the university name on your certificate.
Thank you! Sorry, but how will an okay uni and better major help sanity-wise? Hahah
You'll enjoy it more and it'll be less stressful. Going to an elite uni like Oxbridge and Imperial is very taxing on your mental health, but that's just my opinion.