What do you think is more telling about someone? Things that they like or things that they dislike?

Obviously listing a bunch of crap that you like or dislike can only tell you so much about that person. Personally, I think people’s dislikes are much more distinct and/or particular than their likes.* My friend disagrees. What do you think?

Consider your own lists of likes and dislikes.
Is one more telling than the other?
Or are they both equally telling/retarded?

* I think this is changing though, as hating things is becoming much more standard and generalized. Meaning that before, it used to mean a lot more to think or declare that you disliked something because it was outside the norm of thinking. While now it’s much more accepted and takes much less effort (and much less incentive) to add it to your list of ermm…personal attributes.