Seirei has the highest quality out of what you listed, but be prepared for a steady-paced story that could potentially bore you. That seems to be the number 1 complaint I hear about it. It got slow for me around episodes 10-13 but got better afterwards.
Clannad if you're into moe characters and the typical Key affair(guy changing the girls' lives, light romance, a bit of mystique, etc). Also, Sunohara.
Bamboo Blade for a pack of really eccentric girls who practice kendo. And quite possibly the pinnacle of cute in Tama. Quirky comedy, DS-crushing ass, Lion-tan, murderous girlfriend, etc.