Ok so I have watched well over a 100 anime series. Some hate, some love, some are ok. This is a list of my favorites that I have watched over the years >//<
They are not in any special order. That would be too hard to list fav>least lol
Naruto,Bleach,Death Note,Full Metal Alchemist,One Piece,Fooly Cooly,Rurouni Kenshin,
Basilisk,Lupin the 3rd,Hellsing,Trinity Blood,Trigun,Samurai Champloo,Beck,Gundam Wing,
G Gundam,Gundam 00,Cowboy Bebop,Outlaw Star,Gundam Seed, Wolfs Rain,Girls Bravo,
Scryed, Avatar, Desert Punk, Samurai Deeper Kyo, Inuyasha, Prince of Tennis,
Tenchi Muyo,Tenchi GXP,Ninja Scrolls,Gungrave, DragonBall, DragonBall Z, DragonBall GT,
Afro Samurai, Shijou Saikyou no Deshi Kenichi, Amaenaideyo, Zoid Chaotic Century, Berserk,
Escaflowne,Grappler Baki, Digimon Adventures, Digimon Frontier, Digimon Savers,
Sailor Moon,Ghost in the Shell, Rosario + Vampire, Witch Hunter Robin, Samurai 7, Eureka 7,
Spirited Away, My Neighbor Totoro, Howls Moving Castle, Princess Mononoke, The Cat Returns,
Nausicaa of the Valley of the Wind, Laputa: Castle in the Sky,Golden Boy, Paranoia Agent, Akira,
Yu Yu Hakusho,Slayers, Shaman King, Final Fantasy VII Adevnt Children, Blue Gender, Case Closed,
Galaxy Railways, Shin Chan, Kodocha, Fist of the North Star,Zatch Bell, Hamtaro,Sealab 2012,
07-GHOST,Agent Aika,AIKa R-16 Virgin Mission,Aika Zero OVA,Air Gear ,Amatsuki,Asu no Yoichi!,
Ayakashi,Birdy the Mighty Decode,Black Lagoon,Blade of the Immortal,Blue Submarine No. 6,
Bus Gamer,Chrome Shelled Regios,Clannad,Code Geass,Cross Game,D. Gray Man, Darker Than Black,
Detroit Metal City,Eve no Jikan,Gantz,Get Backers,Golgo 13,Great Teacher Onizuka,Green Green,
Hajime no Ippo,He is My Master,Jyu Oh Sei,K-ON!,Kuroshitsuji,Macross Frontier,Natsume Yuujinchou,
Nodame Cantabile,One Outs,Phantom Requiem for the Phantom,Princess Lover!,Skip Beat!,Soul Eater,
Souten no Ken,Special A,The Big O,To Love-Ru,Toradora!,Vampire Knight,and Witchblade
If I were to pick 25 from that list that I love the most, this would be the list. Again they are in no particular order. It would be impossible to list my all time favorite single anime lol
Bleach
Naruto
Death Note
Full Metal Alchemist
One Piece
Rurouni Kenshin
Hellsing
Beck
Prince of Tennis
Ninja Scrolls
Berserk
Spirited Away
Clannad
Code Geass
Gantz
Golgo13
Eve no Jikan
Detroit Metal City
D. Gray Man
Hajime no Ippo
Nodame Cantabile
Skip Beat!
Vampire Knight
Great Teacher Onizuka
Golden Boy
I also enjoy various Manga such as...Naruto, Bleach, One Piece, Hajime no Ippo, Vampire Knight, Vinland Saga, Histories Strongest Disciple Kenichi, Gantz, Zetman, Cage of Eden, Ane Doki, GTO, Kamen Teacher, Detroit Metal City, New Prince of Tennis, Baki -Son of Ogre, AIKI, Rappi Rangai, Veritas, Karate Shoukoushi Kohinata Minoru, and Angel Densetsu.