My vote is still with the BOSS DS-1: It's a "guitar" pedal, but it's versital enough to do all my bass distortion; mild overdrive to "'Jerry Was a Race Car Driver' Destructo Fuzz." Honestly, most distortion boxes sound like crap through a bass, but the DS-1 handles it all. I'd still like a Blues Driver for my lead overdrive though (when I'm playing guitar).