Optometry definitely.
Stats for salaries? If you google something like "pharmacist salary" the first website should be "prospects.ac.uk" that is quite useful.
But from what I saw:
Pharmacist-Community- Starting salary=£20k-35k
-after 10-15 years= £40k-68k
-locum=£20-25 per hour
-Hospital- Starting=£21k
-Then it progresses through bands (best to have a look yourself)
Optometrist-pre-reg year- £17k-21k
-Starting=£25k
-With experience= £28k-60k+
-Hospital- Different bands again, but paid less than high street chains unless you get to consultant (80k salary)
I am going to start studying Optometry in a few weeks. I was in the exact same position as you last year. Optometry seemed more appealing to me. The hours for a Pharmacist are generally unsocial, late nights, weekends, long/double shifts etc. For an Optometrist it is just 9-5 on weekdays.
I hope this helps, if you need any more advice, feel free to ask here and/or pm me, I'll always be happy to help.