There are a lot of notes I'm pretty neutral about e.g. lemon, but as to notes I've given some thought to...
Favorite notes: tuberose, myrrh, rose, incense, violet, iris, hay, tobacco, cinnamon, clove, all animal notes.
Notes I've newly come to appreciate: carrot, cardamon, immortelle, thyme, cotton candy.
Notes I don't like: aquatics, patchouli, some synthetic floral notes.
My mood and opinion changes all the time, though. Last year I wanted to try all the leather fragrances; this year my interest in them is pretty much nil, and I'm all about spicy orientals and florals.