Whih kid sounds like she is acting worse?

its for me and my sister.
there both bad, but which is worse?
and tell me why, if you can.

this is what we do to each other.

sister 1;
tells the other to go to hell.
tells the other she doesn't care about her/love her.
tells the other she wouldn't care if someone killed her in front of sister 1.

sister 2;
calls the other fatty/pig/fat pig.
occasionally hits her sister.
when the mom/dad isn't looking, sister 2 mocks sister 1.
does everything to get under sister 1's skin, i.e. biting nails, smacking food, etc.

which sounds worse?