My sister is 11 years older than me and growing up, I HATED it because I had TWO moms(which actually I STILL do have 2 moms). Now that we don't live together, we get along but when she was home and home from college we fought ALL THE TIME! She tried telling me what to do all the time and I would pull the "You're not my mother" line, which she really wasn't and I hated her.
She's getting married in September next year and I will be her Maid of Honor.
The things I still dislike about her are that:
1. She thinks she is better than everyone else and it SHOWS especially around Christmas because let's face it: my mom's family is kind of not normal but we won't get into that.
2. She doesn't like Travis and I never understood why. She never would answer me when I ask. Mom doesn't understand either. I think this all comes back to her thinking she is better than everyone
Other than that, we get along great