This topic from Long and Short Reviews brought back a few memories. I hated school, but was very academic, so loved to study and there were a lot of subjects I was good at, whether I liked them or not.
I was good at English and languages and loved them (although for some reason I didn't get on with a lot of the English teachers - I think they'd be quite surprised to hear I was a writer now) but my favourite subject?
Drama. Or Theatre Studies, as it was at A'Level.
At the time I wanted to be an actress, so I was always going to take that subject, even though my dad was ripping his hair out because he wanted me to take another language. I can remember working on monologues and duologues at A'Level, spending hours on the devised piece (a group piece written entirely by the students, and stressful as hell) and doing an abbreviated version of "The Tempest", which awakened my love of Shakespeare. But the other part I loved was getting to go and see plays all the time. We had to write reviews of them afterwards, but I was fine with that. I still do it now to a degree, although only a few lines in my journal these days.
So what was your favourite subject?