Is my younger sister the favorite?

When i first thought my sister was the favorite was last summer at my grandmothers when my 8 year old sister started doin gymnastics and i was playing the french horn and which i took with me my grandma said that i stunk and said it was just noise and i made the honors band and all she ever did those 2 weeks when we were with her every time we caught up to other friends we no all my sister did for like an hour was cartwheels splits and backbends and everytime i brought up music my friends and other family was telling me that im a rlly good french hornist and one night i had alot of family over including her and we talked about kids and she said o jessie(sister) i cant wait to be a great grandma wen u have kids and my sister said wat about claire shes older and im 5 years older than her and my grandma said o claire wont have kids until she like 50 that left me heart broken how could she say something like that and my grandma has a guinea pig and im HIGHLY allergic to the timothy hay which is wat ur sopose to feed them along with food and my sister she sorta allergic and like sne sneezes and sorts of stuff like that but i will break out in hives bloodshot eyes and nose bleeds and everynight i have to feed that guinea pig. Is it just me or is my sister the favorite