What are the herbs that "dry" the best?
Tarragon, basil, oregano, thyme, savory, and sage are the ones that I'm most inclined to use in their dried form.  Generally the more resinous and strongly scented they are fresh, the better they'll be in dry form.

Rosemary will hold its flavor dry but unless you're going to grind the dry product it's like eating pine needles.  I prefer fresh rosemary instead.