If you want something more transparent I would suggest you Aguilar OBP-3 or Bartolini NTMB. They both have a good separation of channels and have big range of boost/cut. Both are "eating" the battery very slowly, especially Bartolini. With everyday usage of approx 2-3 hours it will last at least 6 months.
On my basses I have Bartolini and Aguilar and I'm extremely satisfied with both. Aguilar sounds a little more "modern". Both are 3 channel preamps which gives you enough frequencies to modify. On
www.bestbassgear.com you have the preamps and can take a look at them and the specifications of each.
For Wooten's sound I think it would better be Bartolini. Of course the first thing to keep in mind is the pups. I think he uses EMG.