Without meaning to sound like an arse, you should really be asking yourself which you'll enjoy most and which you're best at rather than which pays the most money and whih is resected.
Generally, if you enjoy the subject, you're better at it. If you're good at what you do (this applies to pretty much everything) you gain respect for it and your skills will be rewarded with £££.
I can only speak from the POV of a pharmacy person. I have found a job for when i (hopefully) pass my degree already, and there are loads of jobs about for pharmacists, so it is kind of reassuring to know that you shouldn't be jobless when you finish.
theres only 16 pre-reg places available in industry though, so you have to be pretty special to get one of those.
From other people i know though, if you are really interested in money, go into computery stuff. they get paid loads more than most pharmacy people do.