I'd have to go Science > Maths > English, but that's not to say I enjoyed science by any means!! It was just the most bearable out of the three. English I despised but I can't knock it too much because it was so easy, I remember just memorising the chapter summaries of the books I was supposed to read on SparkNotes the night before and ended up walking out with an A*...
They gave us the actual books in the exam hall for some reason so I could just flip to the chapter I wanted to talk about based on the summaries then pick out some random lines and use them as quotes. Probably the easiest GCSE for me though the lessons were insanely boring.