Hey,
Just say if it was character surviver between Willow, Xander and Buffy.
They are each assigned a certain amount of points and then member hurt 1 character, which takes away 1 point, and heal another which adds 1 point.
So just say:
Willow : 10
Buffy : 10
Xander : 10
I go first and decide to heal Willow and hurt Xander, so it's now
Willow : 11
Buffy : 10
Xander : 9
Then the next member does the same and so on until only 1 character remains!