I think stainless is the most practical, easy to repair scratches and holster wear, can be polished. Nothing looks as good as the bluing on m27's and m29's from the 60's. Nickle looks great but takes more upkeep. I have two 1911's that I had hard chromed, looks great, easy to keep up, I'm starting to show some ware on one that is over thiry years old. I even like the patina on some of my old cap and ball revolvers, aged bare steel has a special look. The German Silver on my old Colts is pretty cool to.