My favorite friend
I don't just have one favorite friend. I have many of them and they are all favorite in their own kind of way. One I can relate to alot because we have a similar life. Another one is my favorite because we like to crack the same jokes and have similar humor. With another friend I have the same hobbies and we can spend a whole day together doing our hobby.
As long as I have something in common with my friend it is pretty easy for her to become a favorite. Of course one can have a lot of things that are not similar to be friends but if one can't even click on one level, then it's hard for a relationship to grow.
I also think my family are friends and they are favorites because we have been through so much together. Through thick and thin. Downs and lows.