Elixir Stainless Steels. I used the Elixir Nickels for years and years, but recently did a bunch of comparisons (and wasted way too much money) to see if I'd been missing anything. I play-tested Ernie Balls, Rotosounds, D'Addarios, and others in various configurations and came back to Elixirs, just making the change to the steels for a little more bite/crack. I'll kill an uncoated set of strings pretty quickly, within a week, and the Elixirs will last me for several months without really losing anything. A little more cost up front, but by the time I have to change them, they're actually less costly overall. My perfect strings, really.