To the point, clear, and easy to compare to other sheets. When GMing, I like to be able to assess the group dynamic as a whole: easy access to compare and contrast information makes life so much easier when throwing out breadcrumb trails of plot and relationship arcs because it gives me an idea of what kinda bait people might go for. As a player, I like to distinguish my character from others, which is much easier to do when I can easily see who's running what.