The SNES versions are almost the same as the Mac versions. And the PC version of PoP2 is the same as the Mac version if I'm not mistaken.
PoP2 on the SNES misses the last epic "M.C Escher" level (with the spider etc.). I've gotten the DOS version of PoP2 working under DosBox, be it w/ laggy sound just like all Dosbox games...
And, indeed, PoP 1 and 2 are the best games ever deviced by man. The follow ups suck big time as far as I'm concerned. Far too repetitive and not at all epic.