3 or 4 good choices in all 6 main nova matches... interesting.
I actually had more trouble voting in the Stella matches.
ARENA 01:
[Shiomiya Shiori] [Hasegawa Kobato] Yuzuriha Inori Neko
ARENA 02:
[Araragi Karen] Dekomori Sanae
[Elucia de Lute Ima] Kashiwazaki Sena
ARENA 03:
[Momo Belia Deviluke] Kanzaki H. Aria Sakura Kyōko
[Kirigaya Suguha]
ARENA 04: Sanka Rea Nōmi Kudryavka
[Nyarlathotep] [Nibutani Shinka]
ARENA 05:
[Shirakiin Ririchiyo] [Natsume Rin] Chitanda Eru Kushina Anna
ARENA 06: Tsuyuri Kumin
[Shiina Mashiro] Tomoe Mami
[Ayano Keiko (Silica)]
ARENA 07:
[Fujibayashi Kyō] Suiseiseki Sanzen'in Nagi Hinamori Amu
(* One more year for Kyou, even if it means Nagi is unable to advance)
ARENA 08: Chii
[Holo] [Sunohara Mei] Ikaros
ARENA 09: Senjōgahara Hitagi
[Takamachi Nanoha] Shirai Kuroko Ryōgi Shiki
ARENA 10: Kasugano Sora Kōzuki Kallen
[Fate Testarossa] Hirasawa Ui
ARENA 11: Shinku Ryūgū Rena
[Kushieda Minori] [Furukawa Nagisa]
ARENA 12: Aragaki Ayase Asahina Mikuru
[Fujibayashi Ryō] Suigintō
ARENA 13: Watashi
[Kurasaki Fūko (Sky Raker)] Takenaka Hanbee
[Kusaribe Hakaze]
ARENA 14: Kurokami Medaka Irisviel von Einzbern Nishizumi Miho Mizutani Shizuku
ARENA 15:
[Himenokōji Akiko] Erica Blandelli
[Ayukawa Tenri] Ibara Mayaka
ARENA 16: Saigusa Haruka
[Matsumi Kuro] Natsume Asako
[Shimada Minami]
ARENA 17:
[Lala Satalin Deviluke] [Sakai Wakana] Mōri Ran Onjōji Toki
ARENA 18:
[Tōsaka Rin] [Charlotte Dunois] Nagato Yuki Illyasviel von Einzbern
ARENA 19: Louise Vallière
[Katsura Hinagiku] [Suzumiya Haruhi] Victorique de Blois
ARENA 20: Hirasawa Yui
[Konjiki no Yami] [Sengoku Nadeko] Shana