What exams are the best for applying to US universities from Singapore? Should I take the IB, A levels or APs?
Any international qualification, such as the A levels, IB or APs would help US universities assess how well you did academically. Of course, taking extra AP classes might give you an edge especially if they are interesting subjects that are lesser seen in Singapore schools, but US universities will accept any international qualifications alongside your SATs. SATs are of course mandatory.