PFS doesn't have (and never will have) a PPC native version
Emulated PFS3 still beats the s**t out of any FFS. I use PFS3 for all drives on MorphOS, and have had 0 problems.
Either of them don't screw up often, but when they do, they scew up big time. Data recovery chance is approaching zero.
PFS3 comes with very good recovery program (two programs in fact) that can fix any size partition (I perioidically verify my 130 gigs of partitions, just in case). In years (PFS, AFS, PFS2, PFS3) of PFS usage I've had two occasions of filesystem corruption, and both were due to my experimentations with Read/Write cache program (external write cache program is a NONO for PFS, I quicky learnt). Even in these cases I was able to recover fully.
FFS is the only filesystem with guaranteed 100% compatibility whether you're running Linux-APUS or other exotic stuff.
Fine, here is a one good use for FFS. I still prefer VFAT though, it can be read on all m$ oses as well, if needed.
I would never ever go back to FFS.