basically universities in England separate the AP's into two sections (group A &B or something). The first section is the ones they consider "hard subjects", eg english, math, and the sciences. The second section is the ones like econ, psych, music, art etc.
Generally they look more highly upon the first section, but of course it depends on the course you want to study. You can also contact the university to see which AP subjects they think are relevant to your course.