Dresses and skirts, hands down. Especially long dresses/skirts because I can sit down and tuck my feet under like a portable blanket. I also like the swish of a long skirt on my legs and ankles. I think, personally, that women universally look better in skirts/dresses than pants.
However, I do also love the durability and (pocket) practicality of comfy, broken-in jeans.