If you're looking for 32bit devices then forget PBP - it only works for 8bit devices.
With that said there are plenty of 8 bit devices much more capable than the old 16F88 but without knowing what you're looking for (peripheral, number of pins etc) it's hard to provide any specific advice but for a general purpose device perhaps the 18F26K20 might be a good start.

You can use the device selector on Microchips website to sort and filter on the specific details you're looking for.

/Henrik.

EDIT: Pretty much what Robert said, in other words - he replied while I was typing slowly....