I used to love D'Addario Slo-wound strings for my Jazz bass, but I guess nobody else did, because they quit making them. I finally settled on the Fender 7250M. Good sound, good price. Give them a try.
I currently have 7150 Pure nickels on mine, and I am pleased with their sound. I am thinking about a set of flats, which TI's, GHS Precision Flats, and Chromes are on the short list of possibilites.