Modern World History - so much content! British society should be okay as it's more about how you answer the question rather than content, bit iffy on America, but international relations is where things are destined to go tits up.
Chemistry - Newly qualified teachers should not be allowed to teach GCSEs or A-Level, and that is a fact.
Art - Simply because of all the work involved! Still got my timeline/annotations to do... oops.
D&T - Forced to do it, hated it from the beginning, so much work. I fail to understand why my school think I'll try in a subject that I hate, and have told them that I hate for the past 3 years.