I prefer #6, with #4 as secondary. The crosshatching makes it immediately apparent what space is "dead". The drop shadow effectively makes walls darker and easier to notice; you might be able to get a similar effect with a wider line.
Maps in Dungeon are definitely pretty, but that often comes at the expense of clarity. It's an catch-the-eye thing - the pretty maps grab people flipping through. On the other hand, I've had to square-count them before... ARGH.
Maps in Dungeon are definitely pretty, but that often comes at the expense of clarity. It's an catch-the-eye thing - the pretty maps grab people flipping through. On the other hand, I've had to square-count them before... ARGH.