I scan negs the same way I would scan a print, only I usually don't grumble and frown as much when scanning a neg. I find there's less loss of detail when scanning a neg over a print. The neg scan seems to provide a more accurate representation of the image than scanning the print - without a lot of PS corrections. Though film tends to add a bit of a color cast (typcially an orange cast with the film I use). Cast or no cast I prefer the more accurate image over one that needs corrections in order to fully represent the image I shot.

Being that this isn't a competition it seems to make sense to get input before developing rather than after - unless of course you never rely on your own abilities and ask for input on every single image you decide to print.