Rock Lee or Gaara...But more like Lee; he would go 8 gates and see the fruits of his hardwork on his dying moments; it would be sad since he is my favorite too.
Gai's death would make me sad; if he gives a one last speech to Lee about how much he means to him as a precious student and somehow a son i would cry a river; no shame.
But if a death is handled good, even a character i don't care about would effect me...it is up to Kishi.
If Elder Toad Sage dies :NO:
nice list. yeah for me chouji or lee/guy's deaths would get to me the most. Obito's death is going to be tragic as well i think
Gaara, Lee, Kiba, Hinata, or Naruto dying would affect me the most. Obito too, but he's a villain and all... so yeah. i actually think bee and/or gai are bound to die sooner or later.
Me tooI would cry tears of happiness if Karin died.
Basicaly your list.