My time to shine!
I own both an NG2 and an NG3 model. The only thing the NG3 does that the NG2 doesn't is obtain the ability to run all 3 pickups at once.
When doing this, the tone is pretty massive. I tend to find myself using either just the middle pickup, or the bridge and middle in series for most things I do. However, I was playing in a melodic hardcore project for a while, and running all 3 pickups at once was perfect for that project. I was tuning the bass to GCGCF for that project and I can say that running all 3 pickups in that setting produced a very powerful low end without sacrificing the clarity necessary for that style of music.
I hope I answered your question, but if not, feel free to ask me anything. I'm more than happy to answer any questions you have concerning those models.