I can never go wrong with the Neutral sound signature as my favorite, for they always get the sounds that I want in an accurate manner. Second would be, balanced just for the right amounts of bass, mids and treble. What are your favorite sound signatures guys?
Well, it depends on my mood as well. If I am feel that I need accurate sounds are of importance or I am in a mood that is in an analytical feel, neutral is my best bet. If I want to have fun and overall just enjoy the music with some life, either V-shape and Balanced.
This page has a helpful graph relating terms to frequency response curves:
That circles back to another thread about the role of measurements. For speakers and headphones, the frequency response curve will answer about 90% of what you can expect them to sound like, but it won’t answer all of it. For example, for the DT990, the graph will indicate that they have a V signature, but it’s harder to pull out that the treble has that “metallicy” quality many hear.