The large majority here will say PF has better food quality than CM (made to order omelets and eggs, strawberry soup, the ice cream machine runs during breakfast). Yes, there is the occasional bad experience at PF. But history here is at least 90/10 for good/bad review.
We've had many a breakfast at PF (it's now our traditional closer before leaving for MCO) and it is an absolute requirement for all trips. I doubt there is any better character breakfast than the 8:00 first seating. The food is fresh, hardly any one is there, and you'll get lots of time with the characters. We see all of the characters at least twice, if not three times.
For a lot of people it comes down to characters, since there defintely is a difference on the characters.