I vote red, and thats what color mine is. I wanted a color that would photograph well. Red and black look good, but don't "pop" on camera IMO.
Also think about contrasting colors. My red ski with white mats is very defined. Mike Serlin also has a red and white ski, and it photographs well.
Look through the Mex photo galleries and I think you see how good the reds show up.
here is a good pic, blue or red, what stands out more?
The second pic is an older pic, but the red stands out alot more than the blue.
Just my $.02