You really have to find out which string is best for both your hands and your bass. Recently I owned a 69 and a 75 p-bass, both were rosewood board, both had Lollar pups, and they weighed the same. But they didn't sound the same and they didn't like the same brand of flats.
Once you have an idea of the basic sound you want, i.e flatwound, round, nickel or steel, a lot of it is feel. Tension and flexibility vary with construction techniques, for instance Rotosounds are known to feel stiff due to their core. If a string feels good under your hands, especially right hand, obviously you'll play better. These forums are a great resource, back when I started it was a teacher or pro's recommendation and/or what they had at the local music store. And bass strings stayed on until they broke.