I've applied to Oxford, Warwick, Imperial, Durham and Birmingham for Maths. I will most likely get offers from all except Oxford. I'm pretty sure my firm and insurance will be Warwick and Birmingham. However, I don't think I'll be able to cope with the difficulty of the course at Warwick and I think I'd enjoy myself more at Birmingham. My dream career is working in finance and more specifically IB. Would my chances be significantly lower if I chose Birmingham over Warwick?