Pro/E Wildfire, NX Mach or Solid Edge for Surface Modeling?

What works better for Surface Modeling, PTC's Wildfire or Siemans NX Mach. I have also heard good things about Solid Edge although I am not convinced Solid Edge can out-perform Wildfire when modeling complicated surfaces. When I talk to the CAD salesmen it reminds me of buying a used car from a seedy car lot. From the users point of view; what package is the most flexible when re-designing a solid model developed from a surface model.
TIA,
Jerry Dale