I might as well weigh in then.
Absolute top tip. Practice UCAT, then practice some more. DD had strong academics, and strong extra-curricular/volunteering/shadowing, but a weak UCAT. She eventually got three interviews in March, and two offers, but she was very limited in where she might apply and had to be quite tactical. You have so much more choice and opportunity if you apply with a strong UCAT. UCAT is a timed test, so the more familiar you are the better.
On the Oxbridge/non Oxbridge thing. It depends where you want to end up. If you want to be a consultant in a leading teaching/research hospital, or want to keep options open, then Golden Triangle Universities should be considered, and indeed the learning approach may suit very academic DC better.
DD is very dyslexic with slow processing speeds, hence the poor UCAT. She was happy to get a place on a more hands on practical course. However she is using the scope to intercalate (ie take a year out to study something specialised www.intercalate.co.uk/) in London and feels that at the end of her six years she will be as well placed, if not better, as those from Oxbridge, at least in the area she wants to specialise in.
(Worth noting here that some medical schools restrict or forbid external intercalation.)
DDs experience, having attended two, is that medical degrees may be equal, but they are also different, and it is worth looking closely at approach.