To be honest, it's pretty damn hard to choose between the ones I like, but here goes:
1. Air TV
2. Kanon 2006
3. Shuffle! (Perverted, but still, it's pretty damn funny; also has some decent drama near the end, similar to Visual Arts/Key's formula.)
Pretty hard to decide. I'd put Clannad/Afterstory, but when I watched Air I just had to re watch it again. Another thanks to Key for showing me a type of anime that I actually like! I can't stand most anime because of how far-fetched it gets (One Piece, Naruto, etc.) but anime like this seems to just suck me in.
Thanks to Key, I now love music done by Lisa.