UK residents please help me decide on a school location

Hello, I am looking into Physician Associate programs across UK (Birmingham, Bristol, Manchester, Worcester, Nottingham, Liverpool, Newcastle, Leeds, Brunel, Plymouth, Surrey, Chester, Sheffield) and wondering which of this city/place have: 1. Lowest cost of living 2. Highest Diversity Also, in general a 30-40 thousand pounds a year considered good pay in UK? Thanking you in advance.