All these people having different ideas about it....
Its the vote for how you feel this contest works and how you want to vote for it contest. Just do what you want. And really don't bother discussing it here to much anymore. Because honestly, we got 2 camps going on and we are just going to be bitching at eachother over nothing.
Since we are already a small group of players from the total player base and we are split in 2 camps, there is really no use arguing over how to vote and how not to vote. People should just vote on the character they feel their vote deserves, be it in order to upgrade a character that deserves it, or be it the girl who you claim to be your waifu.

Also, I'm claiming Toad Lily as my Waifu. Hence, my votes will go to her, because I would love to have a second H-scene and some more art from her.