It also depended on the teacher a lot, if they have nice personality and know how to make the lesson interesting and productive. My favorite subjects were for example biology, history, russian, citizenship (don't know how the right translation would be), geography also not bad, or literature. Later on, I hated the sex education, I didn't want them to mess my head with such crap, besides I didn't like the teacher. All the girls seemed to like him, but not me.