Dynamax MBs - Which colors are best?

[SFT]

I'm going to be buying 5-7 Dynamax balls to get going for my Bootcamp classes. In the past, I have used the solid black with yellow, marine, red, etc. These look pretty good. I was thinking about trying the navy, red, green, and orange body medicine balls with the gray label. To me these look sharp and add some color to the facility. Anyone have experience with these non-black body colors and long term use/wear? I will be cleaning them regularly, but the last thing I want is some equipment that looks dirty as hell after a year of use.