My all time biggest let down is Air Gear. Even though the manga is still alive. Why would they not continue to make the anime. It was like one of the greatest anime's out there. Also the same goes for Get Backers.
Favorite Anime in Order: Yu Yu Hakusho, Hunter X Hunter, DBZ Franchise, G Gundam, Outlaw Star, Maison Ikkoku, One Piece, GTO, Blue Exorcist, Air Gear, Attack on Titian, Rurouni Kenshin, Code Geass, Cowboy Bebop, Berserk, Magi, Get Backers, Fullmetal Alchemist, Street Fighter II V, Gundam Wing, Trinity Blood, S-CRY-ed, Golden Boy, Salary Man Kintaro, Crying Freeman, Fairy Tail, Tenchi Muyo OVA's, Trigun, Death Note, Black Lagoon, Jormungand, Blue Gender, Claymore, Baki the Grappler, Samurai Champloo, Ping Pong Club, Kyo Kara Maoh, My Bride is a Mermaid, Hajime no ippo, Black Lion, Gurren Lagann, High School of the Dead, Hellsing, Toriko, Fist of the North Star, Slam Dunk, Bleach, Desert Punk, Blood Lad, Ushio & Tora, Space Dandy, Btooom, Inital D, Lupin the III, Gokusen, Samurai Deeper Kyo, Afro Samurai, Ghost in the Shell, Samurai 7, Blood +, Kenichi, Case Closed, Cyborg 009, Chrome Shelled Regios, School Rumble, Inuyasha, Baka and Test