IMHO - Go with Black. I wanted a Rock Warrior originally in Black b/c the black rear bumper looks kind of odd on the White RW. The all Black RW looks awesome. I didn't end up going in the direction b/c wifey didn't like either black or white, so Slate it was.
Black is beautiful but SOOOO hard to keep clean. Plus every little scratch and dent shows up on black. That's the only reason I would go white if those were my only 2 choices.
Mine is white. i love the look of a black vehicle but live in the country down adirt road and work in construction. Black is too much of a b*tch to keep clean and shows any and all scratches.
I like the Rock Warrior but do not want black or white. I am waiting until this summer for the 2011 models and hope they offer the RW in another color preferably red.