Moving to a new school for sixth form?Watch
Just compare these 2 schools:
class size - and does this matter to you? Is smaller better - maybe not for a subject where group discussion is integral
range of subjects - does it offer exactly what you want
3 vs 4 a levels
support for uni/apprenticeship applications - practice interviews, application writing
results for your subjects
what reason caused you to consider moving schools in the first place.