My money is on Reflexes Ninja, but he'll be out soon.
How about a point system? Each round to the finals, each of us picks a favourite. Only one. If that character makes it to the next round we gain one point. You're allowed to change that favourite at the beginning of a new round (chapter in which the old round ends) (something you have to do anyways if your favourite lost), but If you stick to you favouite from the beginning to the end and she/he wins, you gain an extra point. ! point for each round (Quarterfinals, Semifinals and Final) and one extra if you sticked to your favourite would add up to four points maximum.