Personally, I don't care if it's a zip up or a pull over. As for the color scheme, I voted on other colors, mainly because I feel that the color arrangement should involve what goes on it. Yes, I read the original description of what will be on it, but for me, that's not enough. If the design is created first, then I personally would like to see how it's arranged. That can influence the best color choice.
However, I'll probably get one in any case.