I love these strings, give me the tones I like and are good to use fingerstyle.
D'Addario doesn't have pure nickel, it is plated, and Elixir doesn't say what they are made of. While they all were still just a few days old, meaning so they still sounded new. I changed from one to the other. I am using them on a Jeff Beck artist series Strat. The all sounded good, with the Elixir having a softer, somewhat less defined sound for chording. The clearest of all were the Fender. I was especially surprised because solos above 12th fret were clearer and had more sustain. I also felt the sustain must be a result of the bullet ends as the two others have ball ends.
I've tried Ernie Balls in the past, not on this guitar, but I don't care for their tone. So they were never in the mix.
I like these a lot and no longer have a need to try others. I play a mix of music, not including metal or hard rock, but just about everything else. They are great on ballads, country, blues, southern, rock and jazz.
Thanks "Just Strings"