My two お気に入り are C.C. from Code Geass and Lucy/Nyu/Kaede from Elfen Lied but since I am currently watching the 秒 season of Jigoku Shoujo, I feel like posting my third favorite, Ai Enma.
What アニメ is Squid Girl from please tell me so that i can watch this アニメ on YouTube than i will tell あなた if i like it または not than i will goin a ファン club of this anime.
Both seasons of Squid Girl (that's the show's name too) are on Crunchyroll. If あなた don't mind watching a few commercials, you'd be helping the producers of the shows によって watching it there. The first season dub is also on Netflix if あなた have that. link