[Animekitty]

So much to choose from and in the end it all depends on what you like. Currently , I'm watching some 2008 stuff that I've really grown attached to:
Kyouran Kazoku Nikki
Nokizaka no Himitsu
Wagaya no Oinari-sama
Zero no Tuskaima - Princess no Rhondo

but there are some good ol' standbys out there too:
Fruits Baskets
Chobits
Shakugan no Shana
Tokyo Mew Mew