Part of my acquainting myself with a new guitar is figuring out strings for it. With few exceptions, the commonalities are “round wound,” nickel or Monel, and round core. At this point my lightest strung is my Strat, 11-48 set of Pyramid Monel Classics, but with a 10.5 first. My 290 gets John Pearse Jazz 2600 (11-50) set, my Eastman (thin line Jazz) either John Pearse 2700 (12-54) or more recently Pearse 960L (I think…) which are nickel also 12s, —these go on my mahogany acoustic too. (If you like a woody tone, and have a mahogany guitar, try Monel or nickel strings on it, instead of bronze.)
One exception is my baritone, I use the 14-68 set of DiAddario steel wound, but I gotta try the set of la Bella flats! I have three basses, but I haven’t put any new strings on them in so long, I’m really not sure what they are. The 30 inch SX has nylon tape wound on it, my Warwick is some sort of semi polished round wounds, and I have a Turner Renaissance fretless that takes “bespoke” TI strings—bronze wound bass strings! I do have a backup set of these—I have no idea how long they will be made, and the bass would be really different with more normal strings.
My splurge strings are Santa Cruz low tensions, on a rosewood/cedar concert jumbo. I coughed at the original $18 a set price, and gag at the $24 current price. But, besides the way they sound and feel, I’ve got close to 2 years on the current set, and they’re still very intonated and while a bit mellowed, still have a nice piano-like sound to them—so for that kind of longevity, I don’t care about the cost. In a way, the same is true for my experiences with TI. I’ve had Spectrum sets still sound good after 2 years, and a George Benson set of roundwound jazz strings were on the Eastman for a year and a half.