kings or exeter

Hi, I have recently received an offer from both Kings College London and University of Exeter for Biomedical Science. I would have initially preferred Kings but I’m not sure I can reach the required grades (A in Chemistry) whilst Exeter has a lower requirement (B). Should I be aspirational and choose Kings or go for Exeter because i’m more likely to get that grade.? I like both campuses / staff so I’m really unsure! Thanks!