I like very low tension (I come from a background of playing in stonerdoom metal in C standard tuning, so very low tension is what I've been used to for 10+ years, but now I only play in E,) and I also like the bright sound that steel strings give. I've tried every set of steel, taper core, exposed core, etc. that I can get a hold of over the years, and I've found that the best combination of low tension and brightness has been GHS Contact Core Super Steels in light gauge, but I tend to swap them out every one to two weeks because they lose their 'zing.'
Dr. Strings High Beams sound almost as bright, and feels just as low tension, but also tend to last longer. I find myself using High Beams and switching them every month or so, and using the GHS strings when I know I have an important gig coming up.
Of course, most other bassists I know tend to keep their strings on for months to years on end. I just like that crisp sound of new strings and find it worth the money to keep restringing.