A fandom info post with my favorite characters and relationships, in the same style as the one the_firefly made.

Air
Favorite Characters: Kanna
OTPs: Ryuuya/Kanna, Yukito/Misuzu
Platonic Relationships: Haruko + Misuzu

Amatsuki
Favorite Characters: Toki, Ginshu, Bonten, Kuchiha, Tsuyukusa, Tsuruume
OTPs: Bonten/Ginshu, Toki/Kuchiha, Tsuyukusa/Toki, Kon/Toki/Kuchiha
Platonic Relationships: Bonten + Toki, Bonten + Tsuyukusa, Tsuyukusa + Heihachi

Avatar: The Last Airbender
Favorite Characters: Toph, Zuko, Sokka
OTPs: Toph/Sokka, Sokka/Suki, Aang/Katara
Platonic Relationships: Iroh + Zuko

Berserk
Favorite Characters: Griffith, Puck, Casca, Guts, Isidro, Schierke
OTPs: Guts/Casca, Guts/Griffith, Farnese/Serpico, Isidro/Schierke
Platonic Relationships: Guts + Puck

Bleach
Favorite Characters: Rukia, Orihime
OTPs: Renji/Rukia

Cardcaptor Sakura
Favorite Characters: Syaoran, Touya
OTPs: Syaoran/Sakura, Touya/Yukito
Platonic Relationships: Touya + Sakura

Chrno Crusade
Favorite Characters: Rosette
OTPs: Chrno/Rosette
Platonic Relationships: Satella + Rosette, Satella + Azmaria

Clannad
Favorite Characters: Kyou, Tomoyo, Kotomi, Sunohara
OTPs: Tomoya/Kotomi

Claymore
Favorite Characters: Teresa, Helen, Jean
Platonic Relationships: Clare + Raki

Code Geass
Favorite Characters: Kallen, Euphemia
OTPs: Suzaku/Euphemia, Suzaku/Kallen, Lelouch/Kallen, Lelouch/Euphemia, Lelouch/CC, Lelouch/Suzaku

Death Note
Favorite Characters: L, Misa
OTPs: Misa/L/Light, L/Light

Diebuster
Favorite Characters: Nono, Lal'C, Tycho
OTPs: Lal'C/Nono

Doctor Who
Favorite Characters: Donna, Rose, Martha, The Doctor
OTPs: Doctor/Rose
Platonic Relationships: Doctor + Donna

Fairy Tail
Favorite Characters: Lucy, Gray, Ezra, Ur
OTPs: Loki/Lucy, Natsu/Gray/Lucy

Final Fantasy VII
Favorite Characters: Yuffie, Tifa, Zack
OTPs: Zack/Aerith, Cloud/Tifa, Cloud/Yuffie, Zack/Cloud, Vincent/Yuffie

Final Fantasy VIII
Favorite Characters: Rinoa

Final Fantasy IX
Favorite Characters: Vivi, Zidane
OTPs: Zidane/Garnet, Eiko/Vivi, Amarant/Freya

Final Fantasy X
Favorite Characters: Tidus, Rikku
OTPs: Tidus/Yuna, Tidus/Rikku, Wakka/Rikku, Seymour/Yuna
Platonic Relationships: Tidus + Auron, Tidus + Jecht

Final Fantasy X-2 (though for the record I hate this game more than most things lol)
Favorite Characters: Paine
OTPs: Paine/Rikku, Paine/Gippal

Fruits Basket
Favorite Characters: Yuki, Hiro
OTPs: Yuki/Tohru, Yuki/Kakeru

Fullmetal Alchemist
Favorite Characters: Ed, Ran Fan
OTPs: Ling/Ran Fan

Full Metal Panic
Favorite Characters: Tessa, Kaname
OTPs: Sosuke/Kaname, Sousuke/Tessa
Platonic Relationships: Kaname + Tessa

Good Omens
Favorite Characters: Aziraphale, Crowley
OTPs: Crowley/Aziraphale, Shadwell/Tracy

Gundam SEED
Favorite Characters: Cagalli
OTPs: Athrun/Cagalli
Platonic Relationships: Cagalli + Kira

Hayate the Combat Butler
Favorite Characters: Hinagiku, Nagi, Maria, Sakuya
OTPs: Hayate/Hinagiku, Hinagiku/Miki

Higurashi no Naku Koro ni
Favorite Characters: Takano, Keiichi, Mion, Shion
OTPs: Keiichi/Mion, Tomitake/Takano
Platonic Relationships: Keiichi + Rena + Mion + Rika + Satoko

Heroes
Favorite Characters: Hiro, Claire, Ando
OTPs: DL/Niki, Matt/Audrey, Claire/Zach
Platonic Relationships: Hiro + Ando, Mohinder + Molly + Matt

Harry Potter
Favorite Characters: Luna
OTPs: Harry/Luna

Inuyasha
Favorite Characters: Kagura, Kikyou
OTPs: Sesshoumaru/Kagura, Inuyasha/Kikyou, Inuyasha/Kagome

Kanon
Favorite Characters: Makoto, Ayu, Mai, Yuuichi
OTPs: Yuuichi/Ayu, Yuuichi/Makoto, Yuuichi/Mai

Kaze no Stigma
Favorite Characters: Ayano, Kazuma
OTPs: Kazuma/Ayano

Kingdom Hearts
Favorite Characters: Roxas, Larxene, Axel, Sora, Namine
OTPs: Axel/Roxas, Sora/Kairi
Platonic Relationships: Roxas + Hayner + Pence + Olette

Kino's Journey
Favorite Characters: Kino, Nimya

Kure-nai
Favorite Characters: Tamaki, Murasaki
Platonic Relationships: Shinkurou + Murasaki + Tamaki + Yamie

Kyou Kara Maou
Favorite Characters: Jennifer, Murata, Yuuri, Wolfram
OTPs: Shinou/Murata, Yuuri/Wolfram, Adalbert/Julia, Adalbert/Gisela
Platonic Relationships: Jennifer + Wolfram

Lovely Complex
Favorite Characters: Risa, Otani
OTPs: Otani/Risa

Mahou Shoujo Lyrical Nanoha
Favorite Characters: Arf

Mai-HiME
Favorite Characters: Midori, Akira
OTPs: Akira/Takumi, Tate/Mai, Shizuru/Natsuki

MegaTokyo
Favorite Characters: Yuki, Miho, Erika
OTPs: Largo/Erika, Miho/Yuki, Miho/Ping, Miho/Kimiko, Piro/Kimiko

Naruto
Favorite Characters: Sakura, Naruto, Sasuke, Karin, Tsunade
OTPs: Naruto/Sasuke, Naruto/Sakura, Sakura/Naruto/Sasuke, Karin/Suigetsu, Karin/Sasuke, Deidara/Tobi, Ino/Sai, Sai/Sakura, Tsunade/Jiraiya, Tsunade/Orochimaru/Jiraiya, Kakuzu/Hidan
Platonic Relationships: Naruto + Gaara, Naruto + Jiraiya

One Piece
Favorite Characters: Nami, Vivi
OTPs: Zoro/Nami

Princess Tutu
Favorite Characters: Fakir, Ahiru
OTPs: Fakir/Ahiru

Ranma ½
Favorite Characters: Akane
OTPs: Ranma/Akane
Platonic Relationships: Akane + Ukyou

Star Trek: Enterprise
Favorite Characters: Hoshi, Seasons-1-and-2!T'Pol
OTPs: Travis/Hoshi, Malcolm/Hoshi, T'Pol/Archer/Trip, Archer/Hoshi, Trip/Hoshi
Platonic Relationships: T'Pol + Hoshi

Shakugan no Shana
Favorite Characters: Margery, Shana
OTPs: Yuuji/Shana, Margery/Keisaku
Platonic Relationships: Margery + Keisaku + Eita

Shigofumi
Favorite Characters: Chiaki, Natsuka
OTPs: Kaname/Natsuka, Kaname/Fumika, Chiaki/Fumika

Slayers
Favorite Characters: Zelgadis, Lina, Xellos
OTPs: Lina/Zelgadis, Lina/Gourry

Soul Eater
Favorite Characters: Tsubaki, Black*Star, Liz
OTPs: Black*Star/Tsubaki

Suzumiya Haruhi no Yuutsu
Favorite Characters: Kyon, Haruhi
OTPs: Kyon/Haruhi
Platonic Relationships: Kyon + Haruhi + Mikuru + Yuki + Itsuki

Tengen Toppa Gurren Lagann
Favorite Characters: Simon, Kamina, Yoko, Nia
OTPs: Simon/Nia, Kittan/Yoko, Kamina/Yoko
Platonic Relationships: Kamina + Simon

The Tower of Druaga
Favorite Characters: Fatina, Kaaya
OTPs: Jil/Fatina
Platonic Relationships: Fatina + Kally + Utu

Trigun
Favorite Characters: Meryl, Wolfwood
OTPs: Vash/Meryl, Wolfwood/Milly

True Tears
Favorite Characters: Noe, Miyokichi

xxxHOLiC
Favorite Characters: Watanuki
Platonic Relationships: Watanuki + Doumeki

Yu Yu Hakusho
Favorite Characters: Yusuke, Botan
OTPs: Toguro/Genkai
Platonic Relationships: Yusuke + Genkai

Zegapain
Favorite Characters: Lu-Shen, Ryoko
OTPs: Lu-Shen/Kyo, Kyo/Ryoko

Zero no Tsukaima
Favorite Characters: Saito, Kirche, Guiche