My sister enjoyed nicknaming me. I hated all but one of them, and that one didn't last long. By the time I was in college, she had discarded all but one (Banan, short for "Banana-nose" - from the Peanuts cartoon). At that point I had a certain exhausted tolerance for it.
She stopped entirely when she was expecting her first child. Her reasoning: I always thought it was unkind that some of our cousins called my dad by a slightly belittling nickname, so I figured I couldn't let my kids grow up calling you Auntie Banan. And she hasn't used the name since.
Other than that, all three of us sisters (and our spouses) go by the first syllables of our first names when we're in our family group. Outside of family, we usually go by full name.