Different strings have different performance characteristics, so it’s critical to read the product description or talk to the maker before buying. Also, I would recommend buying small quantities of different strings that sound like they have attributes that you’re looking for. When you find what you want, buy more. Feel free to buy additional small counts of other strings as well.
How long a string lasts can be important. It’s an important factor for me, but not the most important. Performance is first. I’ve had strings I didn’t like how they performed, so I’m glad I was only using 5-10 count packs. I’m rather particular about color too as I prefer neon green and/or yellow as they stay bright and easy to see. I also like slightly thicker string as well. Right now, I’m enjoying YYSL Type X and Twisted Stringz Trixtra. It’s gonna be hard to change my mind on these.
So buy some small counts of various strings and find out what you like. That’s far more important that how long it lasts.