My memory isn't bad for Clannad, it's bad in general. Anyways Kotomi is my favorite of the girls, she's so funny. I love how she unknowingly trolls people. And her Manzai bits with Tomoya are hilarious.
Plus Tomoya is an awesome lead, unlike most of the twats that girls usually circle around in anime. And the best part about Fuuko is the pranks Tomoya pulls on her, so goddamn funny. Plus I think you've still got Kotomi to meet who is just awesome.
The dad's my favorite character, so much awesomeness. The mother is easily in my Top 5 too, Nagisa has the best parents ever. You have more Botan/abuse/nice legs/fuuko coming, but Nagisa's parents antics are just as good if not better.