I've always been partial to plaid. Can't really say why, just something about the various ways... the lines are crossed and colors often clash. And those that don't ...still define each other in checkered relationships that rely on a rigidly structured segregation (or should I say compartmentalization?), in which it's not often clear as to which color plays the dominant role... or for that matter which roles are dominant to begin with, like those are matters of opinion. Please don't ask why, and it might just be me, but there's something all-too-human... in plaid.