We used to do all sorts of things on top when DD was little,she never had a preference. After DS was born, from the very first Christmas he could talk, he insisted on a star.
That was the only thing I hadn't done, and didn't want to do, but he had already decided that ONLY stars go on top of Christmas trees, and he was just so sweet and cute about it there was no way I could I deny him!
He picked it out all by himself, and we've used it ever since. And honestly, it's been my most favorite of all.
So, for us it will always be a star!