I got a BS in pharmacy and then a PhD in pharmacology.
I think the PhD will help you get accepted into school. I just don't know if it will actually help you do much better in your classes though. If you can cram a lot of things in your short term memory and then spit them back out again then you're golden - but getting a PhD doesn't mean you are or are not good at that. You will need to give presentations during a PharmD program, and you're presentation skills likely really improved during grad school. The presentations aren't critical to passing, but nobody wants to be embarrassed by giving a bad one.
I also don't know of the magic job for a pharmacist/PhD either - that's what I'm trying to find, and if you find it let me know. You'll have the edge on me though, because you'll be a PharmD/PhD, wheras I'm just a RPh/PhD. Anyway, the job outlook for pharmacists is about 1,000X better than for PhDs right now (with the NIH budget flat) so even if your PhD doesn't help you do anything but get into school you should end up with a higher paying job when you're done.
My advice? If you really hate bench work then the pharmacy job should be more fun, but be careful, sometimes the grass just looks greener. You may want to get a job as a pharmacy tech in a hospital or retail pharmacy if that's what you're thinking of doing (and yes, I know it sounds crazy because you have a PhD). But seeing that job in action part-time, if you don't like it, could save you the last 3 years of school only to get another job you might not love either.