Ever try an Ibanez Phat-Hed PD7 ? I had really good results with that one. I find what pedal you use also depends a lot on what kind of bass and amp you have. The pickups in my Iceman are significantly hotter than the ones in my Spector. As a result, I have to literally change settings, otherwise the tone difference should I switch basses is quite significant.
With my current rig, I've tried the ODB3, PD-7, Sansamp Bass Driver, Fulltone Bass Driver, and many others. While they sounded great through an Ampeg & a few other amps, they didn't fair so well through my Markbass head. I've ended up using a combo of a Tech21 VT Bass pedal & Danelectro Transparent Overdrive and it sounds fantastic.
So, if at all possible, go to wherever the pedals are that you're looking at and try them with either your bass & amp or as close as you can get with whatever you have because (as I've found out) listening to samples & whatnot online may give you a rough idea of what the pedal will sound like but NOT what it'll sound like through your setup.