A-Level and academic profile
Aston University requires A*AA including Chemistry and Biology (A* in Chemistry or Biology). St Mary's Twickenham requires AAA prediction and offer requirements, must include chemistry or biology as well as one of biology/chemistry/physics/maths. Resits only considered in exceptional circumstances. GCSEs: grade 6 minimum in maths, English language, biology and chemistry (or dual award science).. Aston University is the stricter A-Level offer; St Mary's Twickenham is slightly more forgiving. If your predicted grades are borderline, St Mary's Twickenham carries the lower academic-rejection risk pre-interview.
Interview formats
Both Aston University and St Mary's Twickenham use MMI interviews, so the underlying prep approach is the same — practise ethics frameworks, NHS hot-topic answers and (for MMI) structured station responses against a timer. Interview windows: Aston University interviews in December - March; St Mary's Twickenham in December - March.
What makes each distinctive
Aston University: UCAT and GCSE used heavily post-interview (academic:UCAT:interview ratio = 2:1:1). Interview is just 25% of final scoring, so post-interview chances are excellent for high-stat applicants. SJT not used - band 4 is fine. St Mary's Twickenham: For international students only and new this year - apply directly in addition to your 4 UCAS medical choices, so no harm in giving it a try. The medical school is actively seeking links with international applicants.