English Literature for definite - the coursework essays were between 1,500 words and 2,000 words and they required a lot of redrafting to get things 100% as you wanted. If you like writing it's not a problem, but for the people that hated writing, they always complained about how tedious it was.
In the actual exams the essays they were a bit different - rather than a huge long piece of writing, the exams are split up so you write numerous shorter essays (which is potentially better because if you don't do amazing on one of them, you can usually redeem yourself in the others rather than only having one essay and messing up the entire paper...) I did AQA Specification B, so at AS the exam was two hours - Section A was split into two 30 minute essays, and Section B was a one hour essay (though it could still end up quite lengthy if you're a quick writer!), and at A2 the exam was also two hours, with two essays, one Section A and the other Section B.