Kazu is just too fun, one of my favorite ones, I wouls choose Ryo, but he isnt there from the beginning. I would choose Terriermon, but someone already get him. so, Impmon is y second choice i dont remember if he is in the first 4 eps D:
btw, i think its kinda unfair just one point. because you already said which one were your favorites, anyone who chooses Guilmon, Terriermon, Rika or Impmon will get a lot of points. i think you should do a 1 point for character A, 2 for B and 3 por C to get more interesting - unless we have to change team for each episode .
Edit- I change Impmon for Terriermon, and I keep Hirokazu, anything for my son (?)