Who would you pick to be Maid of Honor?

It was interesting reading through that, but you went to way too much trouble to justify yourself! The choice of MOH is one of the most personal and important choices a bride makes BY herself and FOR herself. Sure, you'll need to say something to your sister, but if she's never been a MOH before, just point out that it's not about who the bride is closest to. The MOH has far more responsibilities than the other BMs, and it's always best to pick someone who can handle them easily.