Japanese website Goo has recently asked their users: Which female anime character with red hair do you like the most? A total of 500 people responded, 250 male and 250 female.
Here are the results:
49/48 tie) Misora Whitale (Kuusen Madoushi Kouhosei no Kyoukan) and Hilda (Cross Ange)
47) Eriko Hara (Venus Project)
46/45/44 tie) Yoko Inokuma (Kiniro Mosaic), Shizuno Urushibara (Seiken Tsukai no World Break), and Haruka Takayama (Sakura Trick)
43/42/41/40/39/38/37/36 tie) Satone Shichimiya (Chuunibyou), Tomoyo Kanzaki (Inou Battle), Megumi Natsu (Is the Order a Rabbit?), Haruki Sagae (Riddle Story of Devil), Kotori Itsuka (Date A Live), Yuiko Enomoto (Love Lab), Tieze Shtolienen (Sword Art Online), and Akane Isshiki (Vividred Operation)
35/34/33/32/31) Yuuki Yuuna (Yuuki Yuuna is a Hero), Lilith Asami (Trinity Seven), Shizuka Sakaki (Shirobako), Aruku 18-kin (Himegoto), and Bell Renjouji (Pretty Rhythm)
30/29/28/27 tie) Tsubomi Hanasaki (Precure), Stephanie Dola (No Game, No Life), Suou Pavlichenko (Darker than Black), and Emi Yusa (The Devil is a Part-timer!)
26/25 tie) Cure Ace (PreCure) and Aira Harune (Pretty Rhythm)
24) Awaki Musujime (A Certain Magical Index / A Certain Scientific Railgun)
23/22/21/20 tie) Erika Chiba (Irregular at Magic High School), Mea Kurosaki (To Love-Ru), Minori Kushieda (Toradora), and Rias Gremory (Highschool DxD)
19/18/17 tie) Akane Sakurada (Joukamachi no Dandelion), Gou Matsuoka (Free!), and Ran Gotonda (IS: Infinite Stratos)
16) Suo Amane (Grisaia no Kajitsu)
15) Yoko Littner (Tengen Toppa Gurren Lagann)
14) Akari Akaza (Yuru Yuri)
13) Shirayuki (Akagami no Shirayuki-hime)
12) Kurisu Makise (Steins; Gate)
11) Yonah (Akatsuki no Yona)
10/9/8 tie) Miia (Monster Musume)
7) Kallen Stadtfeld (Code Geass: Lelouch of the Rebellion)
5) Maki Nishikino (Love Live! School Idol Project)
4) Kyoko Sakura (Mahou Shoujo Madoka Magica)
3) Anne (Anne of Green Gables)