I could make a list of what I've seen... but it might be too long. >_>
*tries anyways*
A Channel, Air TV, Angel Beats!, Avatar the last Airbender (if you count that), Azumanga Daioh, Big O, Bokura ga Ita, Cardcaptor Sakura, Chobits, Clannad, Cossette no Shouzou, Cowboy Bebop, Darker than Black, Detective Conan, Digimon, Dragonball, Dragonball Z, Duel Masters, Elfen Lied, Excel Saga, FLCL, Fruits Basket, Full Moon wo Sagashite, Gosick, Hamtaro, Heartcatch Precure, Honey and Clover, Inuyasha, K-On, Kare Kano, Kore was Zombie Desu Ka?!, Kuroshistuji, Kyo Kara Maoh, La Corda D'Oro, Le Chevalier D'Eon, Love Hina, Lupin III, Mermaid Melody, Mononoke, NANA, Negima?!, Nyan Koi, OHSHC, Paradise Kiss, Paranoia Agent, Peacemaker Kurogane, Petshop of Horrors, Pokemon, Pretear, Princess Princess, Princess Tutu, Queen's Blade, Rave Master, Rozen Maiden, Ruroni Kenshin, Sacred Blacksmith, Sailor Moon, Samurai Champloo, School Rumble, Shaman King, Speed Grapher, Starry Sky, Steel Angel Kurumi, Tenchi Muyo, Tokyo Mewmew, Toradora, Trigun, Trinity Blood, Tsubasa, Vampire Knight, Wolf's Rain, Yamato Nadeshiko Shinchi Henge, Yuyu Hakusho, Yu-Gi-Oh, Zero no Tsukaima
Those are all I can find by going down a list of anime and listing what Ive already seen. @__@ I know there must be more.
I want to see a lot.. not even going to list those. But if you want a recommendation.. give me a genre and I'll give you an anime. >:D