When I applied for my pre reg, hosp (london) has the highest salary and thats one of the reasons I picked it, along with other thgs (eg structured study days, more pharmacists support, less weekends compared to community, less work pressure, less dispensing, more clinical development...) plus I did a 3rd summer placement with Boots, and didn't really enjoy it...
Pre reg @ hosp is a band 5 job because of agenda of change, and the hourly rate is about 10 pounds and the normal hr per week is 37.5. (my friend in boots works 40hrs/wk and still got pay less)
However, upon qualifying, community do pay more (33K+) while in hosp is less than 30k. But you can always switch over after you qualify.