i think the issue is depending on "OCCASSION" and "USAGE".
cos if i were to go for a tool watch, steel, ceramic, carbon would be nice.
if it was a dressy watch, rose gold would be sublime.
but if it was for all day use at work, i think steel would work best.
i have not really understood the use of platinum and white gold cos they are very close to steel but 2/3 and even 5x pricier. anybody can enlighten?