D’addario and Elixir strings have completely different characters, Elixir is very bright, D’addario is more balanced. If you are looking for very bright, definitely go with Elixir. But D’addario is more suited for a warm sound. Which brings me to these strings. I bought a guitar that had D’addario exp16 coated on them and was enamored with the warm sound, just stunning for my fingerstyle playing. After the strings died I was kind of in a crisis because the d’addario exp 16 line was finished, and the new xt line was getting mixed feedback. I had never tried Elixir and put them on. The warmth of the instrument was gone totally. Before that I never thought different strings could make such a difference in sound. It was night and day. I’ve bought the d’addario strings now and they are one the way, but I still had some .12 coated strings from harley benton lying around. I put them on, and I was stunned. They sound ALMOST similar to the 3x as expensive d’addario exp16. How is this possible? How does harley benton do it?? Witchcraft, I say! Anyhow, my instrument was singing beautifully again and I am happy!