As any survey of fanservice-heavy anime will make clear, well-endowed girls are popular in Japan, and all the more so if they have attractive personalities to match. The Japanese character encyclopedia, Charapedia, surveyed 10,000 anime and manga fans to determine the top 20 most charming busty characters. The survey was conducted from August 27 to September 2, with the results announced on September 3. 67% of the respondents were male and 69% were aged 10-30. This was not a mere popularity poll; Charapedia uses its own system of assigning points to characters based on various other factors gleaned from the poll, including the order of votes and whether the voters made comments.

The overall results are:

Nami from One Piece (485 points) Nozomi Tōjō from Love Live! school idol project (420 points) Leafa from Sword Art Online (409 points) Sena Kashiwazaki from Haganai (391 points) Tsubasa Hanekawa from Bakemonogatari (351 points) Mikuru Asahina from The Melancholy of Haruhi Suzumiya (283 points) Mami Tomoe from Puella Magi Madoka Magica (268 points) Fujiko Mine from Lupin III (265 points) Yui Yuigahama from My Teen Romantic Comedy SNAFU (260 points) Satsuki Momoi from Kuroko's Basketball (253 points) Anri Sonohara from Durarara!! (219 points) Nana Ebina from Himouto! Umaruchan (216 points) Meiko Shiraki from Prison School (198 points) Tsukuyo from Gintama (192 points) Nodoka Haramura from Saki (184 points) Boa Hancock from One Piece (174 points) Lala Satalin Deviluke from To Love-Ru (172 points) Mio Akiyama from K-ON! (152 points) Seishirō Tsugumi from Nisekoi - False Love (144 points) Rias Gremory from High School DxD (140 points)

The top five results among the male respondents are:

Sena (381 points) Leafa (370 points) Tsubasa (313 points) Nami (287 points) Nozomi (277 points)

The top five results among female voters are:

Satsuki (239 points) Nami (198 points) Fujiko (192 points) Anri (177 points) Nozomi (143 points)

[Via Charapedia; Images from Amazon.co.jp, 2, and Sword Art Online Wiki!]