I found Chemistry the most boring subject ever so I dropped it after six weeks in year 11, though how boring it was may have to do with the teacher we had. Then Biology was the most boring subject so I dropped that at the end of year 11...Physics is alright though (except motors and generators!! I hate them!!)
Maths sucks too but my teacher is terrible. I didn't think it would be hard to teach a class of only 5 students, but he managed to suck anyway.
Sorry about ranting. I think how interesting a course is relies heavily on the effort the teacher puts in, not necessarily the content of the subject. For instance most of our school loves english just because we have a good staff for that faculty. Besides by the end of the HSC, nothing is interesting anymore, its just something that has to be done.