I'd recommend Ryoanji, and just walking through the beautifull neighborhood just down the hill from it. Absolutely fantastic place to stroll in good weather. Also, get over to the parks in Nara if you get a chance. I know it's kind of sappy, but I did enjoy feeding the deer, and having them bow.
I didn't really like Osaka too much myself, but I don't like big cities.
I think Kyoto has a really neat market place about 4 stories of second and first hand stuff...I got a beautifull haori there.