Passive for me,
I like the simplicity of use on stage, the natural sound of the bass and the lack of a battery.
I've tried actives and owned many, Warwick streamer s1 5er, musicman bongo and stingray, trace T-bass, Shuker single cut headless 4 and possibly more. I found them mostly lacking personality, with the exception of the ray. They were too clean and clinical sounding. I like things a little rough 'round the edges.
People talk about the output of active basses, and yes it's higher than most passives, but there are plenty of people who'll make you a high output passive pickup.
That said I am currently inexplicably also drawn to the troy sanders bass.