I play Sfarzo strings. They just last longer.
But it depends on the guitar and the sound that I am going for. A pure nickle if I am trying to richen up or darken a sound, (my favorites are the snake-oil brand that sfarzo sells.) If I want it to last forever, the signature series. I have put years on one set waiting for them to die. But they just don't. If I want a bright and harsh sound for a typical recording, or a certain twang, or crushing with a hot pickup, I adjust accordingly. Just what I want at that time.
One cool thing about Sfarzo, is they make my own signature series string that is made up of different tension strings than usually packaged together and it doesn't cost more.
When it comes to sound, feel and what each guitar needs, there isn't one answer.
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