My two Favoriten are C.C. from Code Geass and Lucy/Nyu/Kaede from Elfen Lied but since I am currently watching the Sekunde season of Jigoku Shoujo, I feel like posting my third favorite, Ai Enma.
What Anime is Squid Girl from please tell me so that i can watch this Anime on Youtube than i will tell Du if i like it oder not than i will goin a Fan club of this anime.
Both seasons of Squid Girl (that's the show's name too) are on Crunchyroll. If Du don't mind watching a few commercials, you'd be helping the producers of the shows Von watching it there. The first season dub is also on Netflix if Du have that. link