in my opinion an A in general studies can give your CV a little extra - shows you can handle maths/science if you mainly do arts and vice versa. i got full marks in all my general studies modules at AS, and most at A2... it looks good, shows youre balanced and interested in whats going on around you. BUT if you think youre going to get less than a B, possibly a C, i think it could be a little dangerous taking it... people might look at it badly, particualrly if they dont understand the exam and dismiss it as useless. getting an E in a "useless" subject makes you look very silly and i'd say youre better off without it. say you got 4 As and then an E in general studies, a university may start to question whetehr youre the kind of person they want... looks like you have no interest in current affairs or are so caught up in your own world you dont notice what other departments do. the top universities have plenty of people applying predicted all As and Bs, remember theyre looking for a good student too, someone who can present their ideas clearly and always be tkaing in information.