Sensei should win the poll, she's the most interesting character in the bunch. Surprising for Japan, though, and their schoolgirl fetish. Personally, I almost always like the teachers best or sometimes the moms.
Joshikousei no Mudazukai -- I adore Witch Girl. She's so cute and has such a sweet personality but ... she's kind of scary It's about the gap, the gap. This is her attempt to remove a curse which is actually a toothache.