I ordered mine in Black Mica. There is anyother thread where someone posted some picks of their Mazda 3s in Black Mica, and it just looks tight! I never liked colors that looked to flashy like yellows and reds. And white just never seems to be clean (even though black is as difficult to keep clean).
I'd say go for the black, but it is ultimately your preference. (burnout)
titanium gray man. Super sexy, never looks dirty...unless it's dark mud, or red dirt.....the usual dust doesn't appear. Plus, it is more of a classy colour, and less of a pull me over and screw me over colour.