We have the crimson. It shows dirt and we wish we'd gotten white. We had several white cars before the Clarity and wanted a change. Black doesn't appeal to me. Black looks best when clean but shows even the slightest dirt. My wife doesn't like green. I didn't want grey/silver (too many years on all grey navy ships).
I have white, and while it is a beautiful color, I would pick dark silver, black or crimson next time.
I imagine that silver shows the salt the least, but I'm going for the Crimson Pearl in my never-ending campaign to keep some color in the traffic mix.
I got black and love it. I don't like the exterior design of the car so I wanted black to hide it. It doest stand out as much as it would if it was white.