I think bath has a better course, they give their students a lot more support than what I hear kings gets...Im personally not a fan of Kings, I think they use their overall reputation for pharmacy to get ahead so my views may be a little skewed!
I have visited both schools of pharmacy and I do admit that I would rather go to kings just so I could stay in London, but that's it really.
All in all, they are both decent course so don't get too hung up on what you decide to go for. Just choose somewhere that you could see yourself in.
Good luck!