I just finished an in home shoot out. Contenders were these, D'Addario and Fender 3150L (pure nickel). I was going for gauge, and D'Addario doesn't have pure nickel in this gauge, only plated, and Elixir doesn't state what these are made of.
D'Addario pure nickel have slightly smaller bass strings.
For the comparison, I changed strings after a few days so they still all sounded very good.
These were third place to the Fender. The Fender were clearer above the 12th fret and I am guessing because of the bullet end (am using a Strat), on the string there was sustain. The Elixir were not as defined as either of the other two for chording.
Again, this is a very good string. I choose the Fender because of perceived clarity above the 12th and overall sustain.
I am a stickler for intonation...and the intonation around the 5th to the 10th fret was horrible...no matter how I adjusted my bridge saddle...I could not get consistent intonation. Oh well...