I shave after. I soak my brush in 172 degree water while showering and then load up some warm lather for a smooth shave. I sometimes shave at night, it seems to be part of a relaxing routine I've been developing.
After. Been doing that even before I knew why (softening the hairs), simply because my dad told me so ... the power of tradition
The only bleeds that I can remember (Gillette Trac II shaving) where when I skipped the shower, e.g. on vacation (no need for a morning shower when you spend half of the day in the swimming pool )
I will play in this thread resurrection. I shave before my shower, always have and always will. Out here in Australia we can quite often be on water restrictions during the Summer months. I don't want to "waste" water so to speak by spending more time in the shower and using more water than I have to. Like everything shaving related we do what ever works for us.
I spent years living on a yacht. Learnt to to perform all my ablutions using no more than about 3 litres of water. That's for wet shaving, cleaning teeth and washing body. It can be done - with care and planning.