Well, these are totally 2 different careers, and so it is hard to tell which one is better.
But Pharm.D. is much much much tougher than BioStat to get in. Without consideration of CSC, most Americans will choose PharmD. At least, it is a top level professional degree.
But it does not mean it is the best choice for LZ.
Like what we used to say, if you are not rich, go with CSC. Otherwise pick the career you like, deal with the rest of them later. There will always be someway out.