Which of these two girls is my TRUE best friend?

I say if you have to ask then neither. However I think friend 2 is a better friend because the only things you listed under disadvantages is the fact that you rarely see each other. And it doesn't matter if she hates one of your friends, good friends don't need to like each other's friends. I don't like some of my best friend's friends and vice versa, but it's not a big deal because we are mature about it.