Most of my reasons for it have been written on the first post by Chicka, and that's why i won't rewrite them all.
I don't know Sango98 that much, but from what i've seen or heard about her, she seems to be a fair and right player.
To my opinion, i think she's able t handle the "job" and the responsabilities that comes with it.
Though i also think that she doesn't appear as an authority person too, i think that she'll be able to have enough of it when needed. Maybe that she already has it, but i've never seen it yet, as she's a funny and gentle player

Good luck in your nomination Sango !