Shows that are sequels and feature the same school uniforms are not counted.
1998
Spring – Cardcaptor Sakura
2002
Spring – Pita-Ten
Fall – I”s
2005
Summer – SHUFFLE!
Fall – Shakugan no Shana
2006
Spring – The Melancholy of Haruhi Suzumiya, Ouran High School Host Club
Fall – CODE GEASS Lelouch of the Rebellion, Otome wa Boku ni Koishiteru
2007
Winter – Kyoshiro to Towa no Sora, Venus Versus Virus
Spring – Hayate no Gotoku!
Summer – Moetan, Nanatsu-iro★Drops, School Days
Fall – CLANNAD, ef – a fairy tale of the two
2008
Winter – H2O -FOOTPRINTS IN THE SAND-, Shigofumi
Spring – Vampire Knight
Summer – No clear winner.
Fall – Akane-iro ni Somaru Saka, ChäoS;HEAd
2009
Winter – Maria†Holic, Sora o Miageru Shojo no Hitomi ni Utsuru Sekai
Spring – Shangri-La, Tayutama -Kiss on my Deity-
Summer – No clear winner.
Fall – 11eyes
2010
Winter – Baka to Test to Shokanju, Okamikakushi
Spring – Mayoi Neko Overrun!
Summer – Okami-san to Shichinin no Nakama-tachi
Fall – Tantei Opera Milky Holmes, Maho Sensei Negima! ~Mou Hitotsu no Sekai~ Extra
2011
Winter – GOSICK
Spring – Ore-tachi ni Tsubasa wa Nai, Aria the Scarlet Ammo
Summer – BLOOD-C, Ro-Kyu-Bu!
Fall – C3, Horizon on the Middle of Nowhere
2012
Winter – Inu × Boku SS
Spring -
Summer -
Fall – Shinsekai yori
2013
Winter – Vividred Operation, GJ-bu
Spring – Henneko
Images.
Best Show of the Season
Italics denote it was just the least worst out of everything; I couldn’t make it past a few episodes.
2005
Winter – AIR
Summer – SHUFFLE!
Fall – Jigoku Shojo
2006
Winter –
Spring – Ouran High School Host Club
Summer – Zero no Tsukaima
Fall – CODE GEASS Lelouch of the Rebellion
2007
Winter – Kyoshiro to Towa no Sora
Spring – Lucky Star
Summer – Higurashi no Naku Koro ni Kai
Fall – CLANNAD
2008
Winter – Spice and Wolf
Spring – CODE GEASS Lelouch of the Rebellion R2
Summer –
Fall – Kuroshitsuji
2009
Winter – Sora o Miageru Shojo no Hitomi ni Utsuru Sekai
Spring – K-ON!
Summer – Umineko no Naku Koro Ni
Fall – 11eyes
2010
Winter – Baka to Test to Shokanju
Spring – Angel Beats!
Summer – Okami-san to Shichinin no Nakama-tachi
Fall – Ore no Imoto ga Konna ni Kawaii Wake ga Nai!
2011
Winter – Puella Magi Madoka☆Magica
Spring – Ano Hi Mita Hana no Namae o Boku-tachi wa Mada Shiranai.
Summer – THE IDOLM@STER
Fall – Fate/Zero
2012
Winter – Ano Natsu de Matteru