... which of these factors influence your advice, and in what order?:
1.The student's stated interests or career aspiration (and your confidence in their ability to reach their goals).
2.The student's predicted KS4 grades?
3.Attracting good students to your own subject area? (Please say what that is).
4.The school's need to fill up undersubscribed courses.
5.The school's aspiration to retain students that might otherwise go to college or elsewhere.
6.The Office for Students' guidance to HE institutions on its strategic priorities, and their categorisation of some courses as low value.
7.Trends in the graduate job market which show that some courses are more likely to lead to "graduate-level" jobs than others.
Fwiw, my personal experience as a parent (which might not be typical) is that 1-5 are all influential but that not all teachers have visibility of or interest in 6 or 7. As a consequence, they advise based on their own past experience of university, which can be out of date.