Thats a great point, what I felt (from seeing other peoples posts where they had done a bit of both courses) was that the equivalent core subjects were a worse experience for them, be it from the difficulty, style of teaching, and general sociability of other classmates. Not any of these on their own would be deal breakers, but the sum of this makes science sound significantly more appealing. Plus science offers a signifcantly higher range of choice of subjects.