What's the better costume?

Zombie princess or Zombie killer princess? (Disney princesses). My friends and i r already planning on a costume for halloween, and we need to make r costume definite so we can get supplies.

For the past few months we were thinking ZOMBIE princesses, and so today, i asked 2 of them (who r both hanging out together) what r we gonna be for halloween, to start getting supplies. But then they said, zombie KILLER princesses. And i made sure that they meant killer and not zombies.

I got into my first argument with them over this because last year we were shadow hunters (demon killers). So i mean its pretty much the same thing! -just with a dark skirt, crown, and different weapons. But i dont want that cuz its not recognizable at all! The only ppl who recognized shadow hunter were da ones who saw da runes. U would think they would be biker princesses or something, but they dont see that, i tried to comprehend with them, where some could be the killers while others should b zombies, but they still said no.

Ive been best friends with them for a long time, and i only have one year left with them until i move, so this is r last group costume theme. We never fight(mainly cuz im easy going and just agree)but i just have to stickup for my self on this one cuz, i have been wanting to wearing a zombie princess costume.

Ugh, its so hard being in a best friend group of 3, cuz someone has to be the 3rd wheel. I had a friend who understood this, but she moved away this summer :/