I have the gold on Stainless... I like it, Wouldn't think of spending the money on the chrome, just my personal opinion, but I like the stainless better...
FWIW, I have a friend who has the chrome and it blued.. he hated it, got a can of flat black exhaust paint and painted his all the way back to the can.. It looks pretty good.
Blued chrome is beautiful.
Chrome pipes and stainless can with chrome hanger are standard so are SS braided brake lines.
Stainless pipes arrived in the Oilhead era and those of us from the previous era when it was chrome or nothing don't always care for it--especially when it's brown rather than gold.
Blue seems the traditional BMW "badge of honor" but brown really doesn't say much positive.
Coatings mostly look like an Airhead with the pinstripes painted over.